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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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  • The UL 2054 Advantage for Lithium Battery Packs

    The UL 2054 Advantage for Lithium Battery Packs

    Aug , 26 2021
    Today’s applications requires you to have a global presence and you are looking for a excellent performance battery with IEC 62133 evaluations but did you know that UL 2054 certified batteries which are standard of safety for household and commercial applications, can assist you by providing a more competitive performance? Confidence in Reliability By using a battery tested and certified to UL 205...
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  • Relation between charge and temperature of LFP battery

    Relation between charge and temperature of LFP battery

    Aug , 26 2021
    During charging and discharging cycles, battery cells face over current, over voltage, and over temperature conditions. The charging process for Lithium batteries consists of two phases: constant current and constant voltage. In the constant current charging phase, the charge current is applied to the battery until the voltage limit per cell is reached. Li-ion batteries cannot accept a higher volt...
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  • Best Storage & Use practices for LFP Batteries

    Best Storage & Use practices for LFP Batteries

    Aug , 27 2021
    Lithium battery fires and accidents are a present risk and a great concern for the users now days, but that can be mitigated if the technology is well understood. This article provides information to help prevent fire, injury and loss of intellectual and other property. Procurement  • Purchase batteries from a reputable and experienced manufacturer like EverExceed.  • Avoid batteries shi...
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  • Cheap and Non-brand Lithium Battery Hazards

    Cheap and Non-brand Lithium Battery Hazards

    Aug , 27 2021
    Cheap and Non-brand Lithium Battery Hazards There are so many cheap and non-brand lithium batteries available in the market right now that it can be a very confusing task for the customer to choose between them and a good brand. Today we are going to discuss regarding the fire hazard of cheap non-brand lithium batteries in this article. Lithium battery fire hazards are associated with the high ene...
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  • LiFePO4 batteries Vs NCM batteries

    LiFePO4 batteries Vs NCM batteries

    Aug , 27 2021
    Lithium iron phosphate (LiFePO4) and Lithium Nickel Manganese Cobalt Oxide (NCM) are both members of the lithium-ion battery family. A Li-ion Battery is composed of four main parts: cathode, anode, electrolyte and separator. Battery type is usually named after its cathode materials such as NCM battery or LFP battery. Both of them have become popular nowadays for Solar, Telecom, UPS, Street lightin...
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  • Is Lithium Battery the best option for Solar street lights?

    Is Lithium Battery the best option for Solar street lights?

    Aug , 27 2021
    Lithium Battery for Solar street lights are becoming more and more main stream solution. We all know that lithium batteries are still marginally expensive considering other types, but it is fair to say that they became much more affordable for solar street light integration. In last 6 years the cost of lithium battery dropped by almost 80%. There are different types of lithium batteries ...
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