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  • Three-stage charging of lead-acid battery

    Three-stage charging of lead-acid battery

    Apr , 15 2023
    1. What is the three-stage charging of lead-acid batteries? The charging method of lead-acid batteries should be divided into three stages, namely: constant current charging - constant voltage charging - trickle charging. Constant current charging stage: charge to 13.4V with 0.2C10 A current. Constant voltage charging stage: 2.4V/cell, charging time 3h, cut-off current 0.02C10A Trickle charge phas...
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  • What are the factors that are unfavorable to lead-acid batteries?

    What are the factors that are unfavorable to lead-acid batteries?

    Apr , 15 2023
    There are many factors that are unfavorable to the battery, mainly in the charging and discharging phase. (1). The "second super" discharge stage is mainly the discharge current overvalue, that is, the discharge exceeds the allowable current value for a long time; the second problem of discharge is over-discharge, that is, exceeding the allowable discharge capacity of the battery, which is called ...
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  • How Lithium-ion Batteries Work

    How Lithium-ion Batteries Work

    Mar , 23 2023
    Lithium-ion batteries are popular because they have a number of important advantages over competing technologies: They're generally much lighter than other types of rechargeable batteries of the same size. The electrodes of a lithium-ion battery are made of lightweight lithium and carbon. Lithium is also a highly reactive element, meaning that a lot of energy can be stored in its at...
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  • Cause of low-temperature attenuation of lithium iron phosphate battery

    Cause of low-temperature attenuation of lithium iron phosphate battery

    Mar , 10 2023
    Lithium iron phosphate battery is a common type of lithium-ion battery, which has the advantages of high energy density, long cycle life, and no pollution, so it is widely used in electric vehicles, power tools and other fields. However, in a low-temperature environment, the performance of lithium iron phosphate battery will be degraded to a certain extent. The attenuation of lithium iron phosphat...
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  • Five most effective ways to maximise your UPS energy efficiency

    Five most effective ways to maximise your UPS energy efficiency

    Mar , 10 2023
    A modern on-line UPS system has many advantages especially when it comes to UPS energy efficiency. It provides protection against all types of power supply failure, filters a vast range of disturbances found in the mains supply. As such, provides more sensitive loads with a clean backup power supply. With extra storage capacity, it can be designed to support the critical load for instance. When an...
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  • Peak shaving and smart grids: the new frontier of UPS systems

    Peak shaving and smart grids: the new frontier of UPS systems

    Mar , 10 2023
    The way we use UPS systems today has changed a lot. Technological improvements in UPS efficiency, versatility, and flexibility have enabled Borri to approach nonstandard UPS applications such as peaking shaving and power buffering. These techniques are in turn related to UPS systems being able to fulfill the demand for integration into Smart Grids. In this article, we get a closer look at how peak...
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  • Battery capacity test

    Battery capacity test

    Mar , 09 2023
    Method 1: offline measurement (1) After fully charging the battery pack disconnected from the power supply system, let it stand for 1-24 hours, and start at the ambient temperature of 25 ℃ ± 5 ℃ Discharge; (2) The terminal voltage of the battery shall be measured before discharge. During discharge, the discharge current time and ambient temperature of the battery shall be measured and recorded The...
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  • Effect of ambient temperature on battery life

    Effect of ambient temperature on battery life

    Mar , 01 2023
    1）Temperature will affect battery capacity At different temperatures, the viscosity of the sulfuric acid solution in the battery will be inconsistent. For example, when the battery is at a temperature below 0°C, as the temperature decreases, the resistance of the sulfuric acid solution will continue to increase, which will directly increase the weight of the electrode. The effect of polarization, ...
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  • Lead-acid battery characteristics

    Lead-acid battery characteristics

    Feb , 24 2023
    Ⅰ： Electromotive force, internal resistance and terminal voltage of lead-acid battery: 1): Electromotive force: refers to the potential difference between the two poles, which depends on the relative density and temperature of the electrolyte.The relative density temperature coefficient of lead-acid battery is 0.00075, that is, the relative density decreases by 0.00075 when the electrolyte tempera...
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