{"id":1718,"date":"2023-02-23T01:19:55","date_gmt":"2023-02-23T01:19:55","guid":{"rendered":"https:\/\/harveypoweress.com\/?p=1718"},"modified":"2023-09-21T01:51:31","modified_gmt":"2023-09-21T01:51:31","slug":"what-is-the-lead-acid-battery","status":"publish","type":"post","link":"https:\/\/harveypoweress.com\/nl\/what-is-the-lead-acid-battery\/","title":{"rendered":"What is the Lead Acid Battery? - Ultimate Guide"},"content":{"rendered":"<h1 style=\"text-align: center;\"><span style=\"font-family: helvetica, arial, sans-serif;\">What is the Lead Acid Battery? - Ultimate Guide<\/span><\/h1>\n<div class=\"news-detail-tool\">\n                    <div>Views: <span>3787<\/span><\/div>\n                    <div>Author: <span>admin<\/span>\n                    <\/div>\n                    <div class=\"news-detail-tool-time\">Publish Time: <span>2023-02-23<\/span><\/div>\n                <\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1719\" src=\"https:\/\/harveypoweress.com\/wp-content\/uploads\/2023\/02\/battery-g3d00d4da9_1280.jpg\" alt=\"Lead acid battery being replenished with distilled water\" width=\"900\" height=\"603\" \/><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\"><em><i>Lead<\/i><\/em><em><i>\u00a0<\/i><\/em><em><i>acid batteries are one of our most commonly used batteries. With a history of 150 years of development, lead-acid batteries have played an indispensable role in transportation, communications, electric power, military, navigation, and aviation.<\/i><\/em><\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\"><em><i>In this article, I will give you an in-depth understanding of the structure, advantages and disadvantages of lead-acid batteries, and summarize the methods for using lead-acid batteries correctly to extend battery life.<\/i><\/em><\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\"><em><i>Trust me, this ultimate guide will help you get the most out of your lead-acid battery!<\/i><\/em><\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-family: helvetica, arial, sans-serif;\">Lead Acid Battery Overview<\/span><\/h2>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead-acid battery (VRLA) is a battery whose electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">In the discharge state of lead-acid batteries, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. In the charged state, the main components of the positive and negative electrodes are lead sulfate.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The nominal voltage of a single-cell lead-acid battery is 2.0V, which can be discharged to 1.5V and charged to 2.4V. In applications, six single-cell lead-acid batteries are often connected in series to form a nominal 12V lead-acid battery, There are 24V, 36V, 48V and so on.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Working principle<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The positive electrode (PbO2) and a negative electrode (Pb) in the lead-acid battery are immersed in the electrolyte (dilute sulfuric acid), and 2V of power will be generated between the two electrodes.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\"><strong><b>Charging reaction:<\/b><\/strong>\u00a0PbSO4 + 2H2O + PbSO4=PbO2 + 2H2SO4 + Pb<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\"><strong><b>D<\/b><\/strong><strong><b>ischarge reaction<\/b><\/strong><strong><b>:<\/b><\/strong>\u00a0PbO2 + 2H2SO4 + Pb = PbSO4 + 2H2O + PbSO4<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Composition structure<\/span><\/h3>\n<table style=\"width: 100%; border-color: #b3b3b3; border-style: inset;\">\n<tbody>\n<tr>\n<td style=\"width: 15.861%; border-color: #b3b3b3; border-style: inset;\" width=\"101\"><span style=\"font-family: helvetica, arial, sans-serif;\">Parts<\/span><\/td>\n<td style=\"width: 41.2387%; border-color: #b3b3b3; border-style: inset;\" width=\"269\"><span style=\"font-family: helvetica, arial, sans-serif;\">Material<\/span><\/td>\n<td style=\"width: 62.0846%; border-color: #b3b3b3; border-style: inset;\" width=\"270\"><span style=\"font-family: helvetica, arial, sans-serif;\">Functions<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.861%; border-color: #b3b3b3; border-style: inset;\" width=\"101\"><span style=\"font-family: helvetica, arial, sans-serif;\">Positive electrode<\/span><\/td>\n<td style=\"width: 41.2387%; border-color: #b3b3b3; border-style: inset;\" width=\"269\"><span style=\"font-family: helvetica, arial, sans-serif;\">The positive electrode is a lead-antimony-calcium alloy fence, which contains lead oxide as the active material<\/span><\/td>\n<td style=\"width: 62.0846%; border-color: #b3b3b3; border-style: inset;\" width=\"270\">\n<ul>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Ensure sufficient capacity.<\/span><\/li>\n<li>Maintain battery capacity during long-term use and reduce self-discharge.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.861%; border-color: #b3b3b3; border-style: inset;\" width=\"101\"><span style=\"font-family: helvetica, arial, sans-serif;\">Negative electrode<\/span><\/td>\n<td style=\"width: 41.2387%; border-color: #b3b3b3; border-style: inset;\" width=\"269\"><span style=\"font-family: helvetica, arial, sans-serif;\">Negative electrode lead-antimony-calcium alloy fence, containing sponge-like fiber active material<\/span><\/td>\n<td style=\"width: 62.0846%; border-color: #b3b3b3; border-style: inset;\" width=\"270\">\n<ul>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Ensure sufficient capacity.<\/span><\/li>\n<li>Maintain battery capacity during long-term use and reduce self-discharge.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.861%; border-color: #b3b3b3; border-style: inset;\" width=\"101\"><span style=\"font-family: helvetica, arial, sans-serif;\">Partition<\/span><\/td>\n<td style=\"width: 41.2387%; border-color: #b3b3b3; border-style: inset;\" width=\"269\"><span style=\"font-family: helvetica, arial, sans-serif;\">The advanced microporous AGM separator keeps the electrolyte and prevents short circuit between positive and negative electrodes.<\/span><\/td>\n<td style=\"width: 62.0846%; border-color: #b3b3b3; border-style: inset;\" width=\"270\">\n<ul>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Prevent positive and negative short circuits.<\/span><\/li>\n<li>Maintain electrolyte.<\/li>\n<li>Prevent active material from falling off the electrode surface.<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.861%; border-color: #b3b3b3; border-style: inset;\" width=\"101\"><span style=\"font-family: helvetica, arial, sans-serif;\">Electrolyte<\/span><\/td>\n<td style=\"width: 41.2387%; border-color: #b3b3b3; border-style: inset;\" width=\"269\"><span style=\"font-family: helvetica, arial, sans-serif;\">In the electrochemical reaction of the battery, sulfuric acid acts as the electrolyte to conduct ions.<\/span><\/td>\n<td style=\"width: 62.0846%; border-color: #b3b3b3; border-style: inset;\" width=\"270\">\n<ul>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Enable electrons to transfer between the positive and negative active materials of the battery.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.861%; border-color: #b3b3b3; border-style: inset;\" width=\"101\"><span style=\"font-family: helvetica, arial, sans-serif;\">Housing and Cover<\/span><\/td>\n<td style=\"width: 41.2387%; border-color: #b3b3b3; border-style: inset;\" width=\"269\"><span style=\"font-family: helvetica, arial, sans-serif;\">Unless otherwise specified, the shell and cover are made of ABS resin<\/span><\/td>\n<td style=\"width: 62.0846%; border-color: #b3b3b3; border-style: inset;\" width=\"270\">\n<ul>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Provide space for battery positive and negative combination fences.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.861%; border-color: #b3b3b3; border-style: inset;\" width=\"101\"><span style=\"font-family: helvetica, arial, sans-serif;\">Safety valve<\/span><\/td>\n<td style=\"width: 41.2387%; border-color: #b3b3b3; border-style: inset;\" width=\"269\"><span style=\"font-family: helvetica, arial, sans-serif;\">Made of high-quality acid- and aging-resistant synthetic rubber.<\/span><\/td>\n<td style=\"width: 62.0846%; border-color: #b3b3b3; border-style: inset;\" width=\"270\">\n<ul>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">When the internal pressure of the battery is higher than the normal pressure, the gas is released to keep the pressure normal<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Prevent oxygen from entering.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 15.861%; border-color: #b3b3b3; border-style: inset;\" width=\"101\"><span style=\"font-family: helvetica, arial, sans-serif;\">Terminal<\/span><\/td>\n<td style=\"width: 41.2387%; border-color: #b3b3b3; border-style: inset;\" width=\"269\"><span style=\"font-family: helvetica, arial, sans-serif;\">Depending on the battery, the positive and negative terminals can be tabs, rods, studs or lead wires.<\/span><\/td>\n<td style=\"width: 62.0846%; border-color: #b3b3b3; border-style: inset;\" width=\"270\">\n<ul>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Sealed terminals facilitate high current discharge and long life.<\/span><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-family: helvetica, arial, sans-serif;\">Advantages of lead-acid Batteries<\/span><\/h2>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(1)\u00a0Performance comparative advantage<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">At present, large-scale industrialized secondary batteries mainly include lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries and lithium-ion batteries. Nickel-cadmium batteries contain cadmium, a highly toxic element, and have been gradually replaced by other batteries.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Currently, the most widely used batteries on the market are lead-acid batteries, lithium-ion batteries and nickel-hydrogen batteries.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Compared with other secondary batteries, lead-acid batteries have the following comparative advantages in performance: Compared with other secondary batteries, lead-acid batteries have the following comparative advantages in performance:<\/span><\/p>\n<ol>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">The battery with the longest industrialized production time and the most mature technology has stable performance, reliability and good applicability.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Dilute sulfuric acid is used as the electrolyte, which is non-flammable. The battery is designed with normal pressure or low pressure, which is safe.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">The working voltage is high and the working temperature range is wide, which is suitable for high-rate discharge applications such as hybrid electric vehicles (HEV).<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">It can be used for floating charging and has excellent shallow charging and shallow discharging performance. It is suitable for uninterruptible power supply (UPS), new energy storage, power grid peak shaving and valley filling and other fields.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Large-capacity battery technology is mature and can be made into thousands of ampere-hour batteries, which provides convenience for large-scale energy storage.<\/span><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(2)\u00a0Cost comparative advantage<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead-acid batteries are the cheapest secondary batteries, and the price per unit of energy is about 1\/3 of lithium-ion batteries or nickel-hydrogen batteries.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">In addition, the main components of lead-acid batteries are lead and lead compounds. The lead content is as high as 60% of the total battery mass. The residual value of used batteries is high, and the recycling price exceeds 30% of new batteries.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Therefore, the comprehensive cost of lead-acid batteries is lower.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(3)\u00a0Comparative advantage of recycling<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead-acid batteries have simple composition, mature regeneration technology, and high recycling value. They are the easiest batteries to realize recycling and recycling.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The global output of recycled lead has surpassed that of primary lead, the recycling rate of waste lead-acid battery lead in the United States has exceeded 98.5%, and the recycling rate of waste lead-acid battery in my country has also reached more than 90%.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Nickel-cadmium batteries and nickel-hydrogen batteries are mostly small batteries with complex compositions, high regeneration costs, and difficult recycling. It is difficult for the recycling industry to achieve market-oriented operations. The global average recycling rate is less than 20%.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-family: helvetica, arial, sans-serif;\">Disadvantages of lead-acid batteries<\/span><\/h2>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(1) Low energy density<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The mass and volume energy density of traditional lead-acid batteries are low, the energy density is only about 1\/3 of lithium-ion batteries, about 1\/2 of that of nickel-hydrogen batteries, and the volume is relatively large, so it is not suitable for lightweight and small-volume occasions use.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(2) Short cycle life<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The cycle life of traditional lead-acid batteries is short, and the theoretical cycle number is about 1\/3 of that of lithium-ion batteries.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">There is still a lot of room for improving the <a href=\"https:\/\/harveypoweress.com\/nl\/lithium-battery-cycle-life\/\" target=\"_blank\" rel=\"noopener\">cycle life of lead-acid batteries<\/a>, especially lead-acid batteries with new materials, new structures and new technologies, such as bipolar lead-acid batteries and lead-carbon batteries.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(3) There is a risk of lead pollution in the industrial chain<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead is the main raw material of lead-acid batteries. Lead accounts for more than 60% of the battery mass. Global lead-acid batteries use more than 80% of the total lead.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead is a heavy metal, and there is a high risk of lead pollution in the lead-acid <a href=\"https:\/\/harveypoweress.com\/nl\/top-lithium-battery-manufacturers-in-the-world\/\" target=\"_blank\" rel=\"noopener\">battery manufacturing<\/a> industry chain. Poor management will cause environmental pollution and harm human health.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-family: helvetica, arial, sans-serif;\">Several Methods of Charging Lead Acid Batteries<\/span><\/h2>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(1) Constant current charging method<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The charging current remains constant during the charging process, which is called constant current charging method, referred to as constant current charging method or equal current charging method.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">During the charging process, as the battery voltage gradually increases, the charging current gradually decreases. In order to keep the charging current from decreasing due to the rising battery terminal voltage, the charging process must gradually increase the power supply voltage to maintain the charging current. The automation degree of the charging equipment is relatively high, and the simple and simple charging equipment cannot meet the requirements of constant current charging.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Constant current charging method, in the case of the maximum allowable charging current of the battery, the greater the charging current, the shorter the charging time.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">In terms of time, it is advantageous to use this method. However, if the charging current remains unchanged at the later stage of charging, at this time, since most of the current is used for electrolyzing water, the electrolyte solution will appear to be boiling due to too many bubbles, which not only consumes electric energy, but also easily causes a large amount of active substances on the plate to fall off, resulting in high temperature. The rise is too high, causing the plate to bend, the capacity drops rapidly and it is scrapped ahead of time.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Therefore, this charging method is rarely used.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(2) Constant voltage charging method<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">In the charging process, the charging voltage remains constant all the time, which is called constant voltage charging method, abbreviated as constant voltage charging method or equal pressure charging method.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Since the constant voltage charging starts at the later stage, the power supply voltage is always kept constant, so the charging current is quite large at the beginning of charging, which greatly exceeds the normal charging current value.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">However, as charging progresses, the terminal voltage of the lead-acid battery increases gradually, and the charging current decreases gradually. When the terminal voltage of the lead-acid battery is equal to the charging voltage, the charging current is reduced to a minimum or even zero.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">It can be seen that the advantage of using the constant voltage charging method is that it can avoid the loss of the active material of the plate and the loss of electric energy caused by the excessive charging current in the later stage of charging.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">But its disadvantage is that when charging is just started, the charging current is too large, and the volume change and shrinkage of the electrode active material are too fast, which affects the mechanical strength of the active material and causes it to fall off.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">And in the later stage of charging, the charging current is too small, so the active material in the deep part of the plate cannot get the charging reaction, resulting in long-term insufficient charging, which affects the service life of the battery.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Therefore, this charging method is generally only suitable for special occasions where there is no power distribution equipment or the charging equipment is relatively simple, such as lead-acid batteries on automobiles, and small <a href=\"https:\/\/harveypoweress.com\/nl\/what-is-the-dry-battery\/\" target=\"_blank\" rel=\"noopener\">dry cell-type lead-acid batteries<\/a>.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">When using the equal pressure charging method to charge the lead-acid battery, the required power supply voltage: each <a href=\"https:\/\/harveypoweress.com\/nl\/what-happens-if-lead-acid-battery-runs-out-of-water\/\" target=\"_blank\" rel=\"noopener\">acidic single battery<\/a> is about 2.4-2.8V, and each alkaline single battery is about 1.6-2.0V.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(3) Constant voltage charging with fixed resistance<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">A method adopted to remedy the disadvantages of constant voltage charging.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">That is, a resistor is connected in series between the charging <a href=\"https:\/\/harveypoweress.com\/nl\/product\/12v-battery\/12v-rv-battery\/\" target=\"_blank\" rel=\"noopener\">power source and the battery<\/a>, so that the current at the initial stage of charging can be adjusted.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">But sometimes the maximum charging current is limited, so as the charging process progresses, the battery voltage gradually rises, but the current decays almost linearly.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Sometimes two resistor values are used, switching from low to high at about 2.4V to reduce outgassing.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(4) Stage equal current charging method<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Combining the characteristics of constant current and constant voltage charging methods.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead-acid batteries use a larger current in the initial stage of charging, then use a smaller current after a period of time, and switch to a smaller current in the later stage of charging, that is, the method of constant current charging with different currents in different stages is called stage constant charging. flow charging method.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The charging time required by the stage equal current charging method is short, and the charging effect is also good. Since charging with a smaller current is used in the later stage of charging, the erosion of the active material on the plate by the air bubbles is reduced, and the shedding of the active material is reduced.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">This charging method can prolong the service life of the battery, save electric energy, and charge thoroughly, so it is a commonly used charging method at present.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Generally, the first stage of the battery is charged with a 10h rate current, and the second stage is charged with a 20h rate current. The length of charging time at each stage, the specific requirements and standards of various batteries are different.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">(5) Float charging method<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead-acid batteries used intermittently, or only during AC power outages, are charged by float charge.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Fixed lead-acid batteries used in some special occasions are generally charged by floating charging.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The main advantage of the float charging method is that it can reduce the gassing rate of the battery and prevent overcharging.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">At the same time, since the battery is connected in parallel with the DC power supply, the lead-acid battery outputs a large current instantaneously when the electrical equipment uses a large current, which helps to stabilize the voltage of the power supply system, and the electrical equipment uses electricity normally.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The disadvantage of the float charging method is that individual lead-acid batteries are unbalanced and undercharged, so regular equalization charging is required.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-family: helvetica, arial, sans-serif;\">Factors Affecting the Life of Lead-acid Batteries<\/span><\/h2>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">1. Depth of discharge<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The <a href=\"https:\/\/harveypoweress.com\/nl\/lifepo4-battery-depth-of-discharge\/\" target=\"_blank\" rel=\"noopener\">depth<\/a> of discharge is the extent to which the discharge starts to stop during use. The focus of design considerations is deep cycle use, shallow cycle use, or floating charge use.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">If a shallow-cycle battery is used for deep-cycle use, the lead-acid battery will fail quickly. And the deeper the discharge depth, the shorter its cycle life.<\/span><\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">2. Degree of overcharge<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">A large amount of gas is released during overcharging. At this time, the active material of the positive plate is impacted by the gas, and this impact will promote the shedding of the active material.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">In addition, the positive grid alloy is also subject to severe anodic oxidation and corrosion, so the service life will be shortened when the battery is overcharged.<\/span><\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">3. The influence of temperature<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead-acid battery life increases with temperature.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Between 10\u00b0C and 35\u00b0C, every increase of 1\u00b0C will increase about 5-6 cycles; between 35\u00b0C and 45\u00b0C, every increase of 1\u00b0C can prolong the life of more than 25 cycles; The life of the negative electrode is reduced due to the loss of vulcanization capacity.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Battery life increases with temperature within a certain temperature range because capacity increases with temperature.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">If the discharge capacity remains the same, the discharge depth decreases when the temperature rises, and the solid life is prolonged.<\/span><\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">4. The influence of sulfuric acid concentration<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The increase of acid density is beneficial to the positive plate capacity.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">But it also increases the self-discharge of the battery, and the corrosion of the grid, which promotes the loosening and falling off of lead dioxide.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Therefore, as the density of the <a href=\"https:\/\/harveypoweress.com\/nl\/lithium-battery-versus-lead-acid\/\" target=\"_blank\" rel=\"noopener\">acid used in lead-acid batteries<\/a> increases, the cycle life decreases.<\/span><\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">5. Influence of discharge current density<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">As the discharge current density increases, the lifetime of the battery decreases.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Because under the conditions of high current density and high acid concentration, the positive electrode lead dioxide is loosened and falls off.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-family: helvetica, arial, sans-serif;\">Maintenance Tips for Lead-acid Batteries<\/span><\/h2>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Timely charging<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead-acid batteries have no memory, and the rapid reduction in capacity is mainly due to some reasons such as lead-acid battery vulcanization, \"water loss\", and \"power loss\".<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The capacity of the battery is reduced, and the electrode plate is strained by the strong current (starting current) during discharge, and the electrode plate strain is physical damage to the battery, which cannot be repaired.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Therefore, it is inevitable to ensure that the lead-acid battery has sufficient voltage at any time.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Replenish distilled water regularly<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Users generally think that maintenance-free lead-acid batteries do not need to add water, but this statement is wrong.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead-acid batteries will generate heat during charging and high-current discharging, and water will evaporate when there is heat.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Although the process of water evaporation is very slow, the cumulative amount of water evaporated over time cannot be underestimated.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Therefore, the lead-acid battery should be replenished with water every 6 months or so, so that the service life of the battery will be extended.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Regular deep cycle<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Lead-acid batteries will inevitably have some active substances sink after being used for a period of time. If these active substances are not activated in time, it will have some impact on the capacity of the battery.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Therefore, when using electric vehicles frequently, it is necessary to deeply discharge the lead-acid battery once a quarter.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Good charger<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">For new lead-acid batteries, the charging process usually takes 6-8 hours, and the charger will light up green when fully charged.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">If the charging time is too long, check whether the charger voltage protection device is damaged, and replace the charger in time, otherwise, the battery will be easily damaged.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">In addition, do not buy a fast charger for the charger, as fast charging will also damage the lead-acid battery plates.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Prevent excessive sunlight<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Excessive sunlight will increase the temperature of the battery and greatly shorten the battery life.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Inspection and cleaning<\/span><\/h3>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">If the lead-acid battery is not cleaned in time, it will easily affect the service life and electrification effect of the battery.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">The oxidation reaction is easy to occur between the pole and the chuck of this lead-acid battery, and even corrodes the metal parts at the chuck.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Therefore, pay attention to checking whether the pole and the chuck are connected tightly, whether there is corrosion and burning, whether the vent hole is blocked, whether the electrolyte is reduced, etc., and deal with it in time.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-family: helvetica, arial, sans-serif;\">Application of Lead-acid Battery<\/span><\/h2>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Backup power<\/span><\/h3>\n<ul>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Telecommunications.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Solar system.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Electronic switch system.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Communication equipment: base station, PBX, CATV, WLL, ONU, STB, cordless phone, etc.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Backup power supply: UPS, ECR, computer backup system, Sequence, ETC, etc.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Emergency equipment: emergency lights, fire and burglary alarms, fire gates<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-family: helvetica, arial, sans-serif;\">Main power<\/span><\/h3>\n<ul>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Communication equipment: transceiver.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Electric control locomotives: collection vehicles, automatic transport vehicles, electric wheelchairs, cleaning robots, electric vehicles, etc.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Machine Tool Starters: Lawnmowers, hedge trimmers, cordless drills, power drivers, power sleds, etc.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Industrial Equipment\/Instrument.<\/span><\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\">Camera: flash, VTR\/VCR, film light, etc.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-family: helvetica, arial, sans-serif;\">Summarize<\/span><\/h2>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Compared with other batteries, the biggest advantage of lead-acid batteries is the mature technology, so the cost is also low, and they occupy an important position in various fields. But as our current demand for electricity is increasing, it is no longer possible to rely solely on lead-acid batteries.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">Today, lifepo4\u00a0batteries have broken through the siege. With better performance, <span style=\"color: #8dba74;\"><a style=\"color: #8dba74;\" title=\"How Long Does the Lifepo4 Battery Last\" href=\"https:\/\/harveypoweress.com\/nl\/how-long-does-a-lifepo4-battery-last\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\">life<\/span><\/a><\/span>, <span style=\"color: #8dba74;\"><a style=\"color: #8dba74;\" title=\"Lifepo4 Battery Safety\" href=\"https:\/\/harveypoweress.com\/nl\/4-reasons-why-lifepo4-battery-safety\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\">safety<\/span><\/a>,<\/span> and environmental protection, they are far superior to lead-acid batteries. They are the only batteries that can <a href=\"https:\/\/harveypoweress.com\/nl\/lithium-battery-replacement-for-lead-acid\/\" target=\"_blank\" rel=\"noopener\">replace<\/a> lead-acid batteries in the past 150 years and become the industry leader and are widely used.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">So what are the differences between lifepo4 batteries and lead-acid batteries? Read the article \u201d<span style=\"color: #8dba74;\"><a style=\"color: #8dba74;\" href=\"https:\/\/harveypoweress.com\/nl\/lifepo4-battery-vs-lead-acid-battery\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\">Lifepo4 Battery VS Lead-acid Battery<\/span><\/a><\/span>\u201d to learn more.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"font-family: helvetica, arial, sans-serif;\">Choose the Best Battery for your Solar System<\/span><\/h2>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\"><span style=\"color: #8dba74;\"><a style=\"color: #8dba74;\" href=\"https:\/\/harveypoweress.com\/nl\/about-us\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\">Harveypower<\/span><\/a><\/span>\u00a0lifepo4 battery manufacturer is committed to creating the best solar energy storage battery and fully promoting global green environmental protection and energy development.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">We have <span style=\"color: #8dba74;\"><a style=\"color: #8dba74;\" href=\"https:\/\/harveypoweress.com\/nl\/product\/48v-battery\/lifepo4-server-rack-battery\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\">rack-mounted batteries<\/span><\/a><\/span>\u00a0and <span style=\"color: #8dba74;\"><a style=\"color: #8dba74;\" href=\"https:\/\/harveypoweress.com\/nl\/product\/48v-battery\/stackable-solar-battery\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\">stacked batteries<\/span><\/a><\/span>\u00a0that can be used for household\/industrial and commercial, 1-30kWh free expansion, and the king of family space saving - <span style=\"color: #8dba74;\"><a style=\"color: #8dba74;\" href=\"https:\/\/harveypoweress.com\/nl\/products\/powerwall\/\" target=\"_blank\" rel=\"noopener\"><span style=\"text-decoration: underline;\">Powerwall<\/span><\/a><\/span>.<\/span><\/p>\n<p><span style=\"font-family: helvetica, arial, sans-serif;\">68 core technical teams tailor a unique <a href=\"https:\/\/harveypoweress.com\/nl\/lithium-battery-for-solar\/\" target=\"_blank\" rel=\"noopener\">solar energy storage system<\/a> for you.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Lead-acid battery (VRLA) is a battery whose electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution.<\/p>\n<p>In the discharge state of lead-acid batteries, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. In the charged state, the main components of the positive and negative electrodes are lead sulfate.<\/p>\n<p>The nominal voltage of a single-cell lead-acid battery is 2.0V, which can be discharged to 1.5V and charged to 2.4V. In applications, six single-cell lead-acid batteries are often connected in series to form a nominal 12V lead-acid battery, There are 24V, 36V, 48V and so on.<\/p>","protected":false},"author":1,"featured_media":1719,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[146],"class_list":["post-1718","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lead-acid-battery-guidelines","tag-lead-acid-battery"],"_links":{"self":[{"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/posts\/1718","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/comments?post=1718"}],"version-history":[{"count":13,"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/posts\/1718\/revisions"}],"predecessor-version":[{"id":7825,"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/posts\/1718\/revisions\/7825"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/media\/1719"}],"wp:attachment":[{"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/media?parent=1718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/categories?post=1718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/harveypoweress.com\/nl\/wp-json\/wp\/v2\/tags?post=1718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}