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  • Top Standards for Lithium Battery Safety Testing- UL 2054 (abnormal charging test)

    Top Standards for Lithium Battery Safety Testing- UL 2054 (abnormal charging test)

    Aug , 26 2021
    For lithium batteries, there are some popular standards that Battery Lab tests to most often. In this sequel of articles we are going to discuss about these popular standards one by one. Today we are going to discuss about the UL 2054– UL Standard for Safety of Lithium Batteries (the abnormal charging test). UL 2054 Abnormal charging test: 1. Lithium-ion batteries discharged to the battery manufac...
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  • Top Standards for Lithium Battery Safety Testing- UL 2054 (short-circuit test)

    Top Standards for Lithium Battery Safety Testing- UL 2054 (short-circuit test)

    Aug , 26 2021
    For lithium batteries, there are some popular standards that Battery Lab tests to most often. In this sequel of articles we are going to discuss about these popular standards one by one. Today we are going to discuss about the UL 2054– UL Standard for Safety of Lithium Batteries (the short circuit test). UL 2054 Short Circuit test: 1. Each fully charged test lithium-ion cell, in turn, is to be sho...
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  • Top Standards for Lithium Battery Safety Testing- UL 1642

    Top Standards for Lithium Battery Safety Testing- UL 1642

    Aug , 26 2021
    For lithium batteries, there are some popular standards that Battery Lab tests to most often. In this sequel of articles we are going to discuss about these popular standards one by one. Today we are going to discuss about the UL 1642– UL Standard for Safety of Lithium Batteries. UL 1642 These requirements cover primary (no rechargeable) and secondary (rechargeable) lithium batteries for use as po...
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  • Top Standards for Lithium Battery Safety Testing- IEC 62133

    Top Standards for Lithium Battery Safety Testing- IEC 62133

    Aug , 26 2021
    For lithium batteries, there are some popular standards that Battery Lab tests to most often. In this sequel of articles we are going to discuss about these popular standards one by one. Today we are going to discuss about the IEC 62133 – Safety requirements for portable sealed secondary lithium cells, and for batteries made from them, for use in portable applications – Part 2: Lithium systems IEC...
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  • Top Standards for Lithium Battery Safety Testing- UN/DOT 38.3

    Top Standards for Lithium Battery Safety Testing- UN/DOT 38.3

    Aug , 26 2021
    For lithium batteries, there are some popular standards that Battery Lab tests to most often. In this sequel of articles we are going to discuss about these popular standards one by one. Today we are going to discuss about the UN/DOT 38.3 5th editions, Amendment 1: Recommendations on the transport of Dangerous Goods. UN/DOT 38.3 If you want to ship a lithium battery almost anywhere in the world by...
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  • Charging profile of a SLA and LiFePO4 battery

    Charging profile of a SLA and LiFePO4 battery

    Aug , 26 2021
    If you've recently purchased or are researching lithium iron phosphate batteries, you know they provide more cycles , an even distribution of power delivery , and weigh less than a comparable sealed lead acid (SLA ) battery . Did you know they can also charge four times faster than SLA? But exactly how do you charge a lithium battery, anyway? EverExceed recommends you select a charger designed for...
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  • Battery technologies and trends for UPS applications

    Battery technologies and trends for UPS applications

    Aug , 26 2021
    Battery chemistries currently available for UPS backup include Lead-Acid, Lithium-ion (Li-ion) and Nickel-Cadmium. There are also non-battery technologies like flywheels and Super-Capacitors. However, this article focuses on the two types that currently dominate the data centre industry: Lead-Acid, which represent over 90 per cent of the UPS market share, and Li-ion, which is attracting increasing...
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  • SOC-OCV test for Lithium batteries

    SOC-OCV test for Lithium batteries

    Aug , 26 2021
    OCV is very important for SOC estimation. It is a function of cell SOC and temperature. There are two methods to measure the OCV, namely coulomb titration and voltage relaxation. The former discharges and charges the cell with the same low current while measuring the terminal voltage. The OCV is defined as the average value of the charge and the discharge terminal voltage. The latter determines th...
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  • Some common questions and their answers about the lithium batteries in UPS applications

    Some common questions and their answers about the lithium batteries in UPS applications

    Aug , 26 2021
    What are the primary benefits of switching to lithium based UPS batteries? The most common reason cited is the significantly longer service life. Lithium also provides a greater cycle life (the number of charge/discharge cycles ranges from extends into the thousands, versus approximately 500-600 for VRLA batteries), as well as a longer warranty. Furthermore, the lighter weight and smaller footprin...
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  • Life Expectancy for a Lithium Battery in a Stationary Application

    Life Expectancy for a Lithium Battery in a Stationary Application

    Aug , 26 2021
    One of the key attractions for moving to lithium batteries is the battery life being multiples of what is possible with lead-acid batteries. Yet, with limited operating data in UPS applications available today, it’s natural for potential users to question how long lithium batteries will actually last. To address this question, it’s necessary to first understand how lithium batteries degrade under ...
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  • Critical factors for LFP batteries in LEV application

    Critical factors for LFP batteries in LEV application

    Aug , 26 2021
    Lithium batteries are lightweight and provide higher energy density than lead-acid or nickel–metal hydride (NiMH) batteries, creating a demand for them in electric vehicles (EV), energy storage, and consumer electronics. Compared to NiMH batteries, lithium batteries have a 50 percent greater capacity in watt-hours per kilogram (w-h/kg). The EV industry is demanding higher-efficiency batteries; in ...
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  • The role of BMS for a UPS LFP battery pack

    The role of BMS for a UPS LFP battery pack

    Aug , 26 2021
    As a means of protection, most lithium battery systems of almost any string voltage require a battery management system (BMS) to maintain the cell operating conditions within the limits. These can range in complexity from just cell balancing to ones that monitor cell voltage; cell temperature and current; and, through the use of either semiconductor switches or relays, will disconnect the battery ...
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