At present, the battery used by the UPS is substantially maintenance-free lead-acid battery. Its floating capacity is generally reached from 7 to 15 years, the life of the lead-acid battery and the number of discharges, discharge depth, operating temperature, floating voltage and discharge current There is a direct relationship.Be
(1) Discharge depth and discharge
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The lead battery repeatedly exits a large amount of battery power (deep discharge) will shorten the battery life, the relationship between life and discharge depth, and the number of discharges can be represented by Fig. 1.
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(2) Work temperature
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The charging voltage at the time of the battery floating charge is related to the ambient temperature, when the temperature increases, the charging voltage should be lowered to prevent overcharge; when the ambient temperature is lowered, the charging voltage should be improved to prevent insufficient charging, temperature and charging voltage The relationship curve can be represented by Figure 2. The operating temperature has a large amount of capacity of the battery, and the capacity decreases with ambient temperature. The battery capacity change at ambient temperature change at 1 ¡ã C is called the temperature coefficient of the capacity, and the relationship between temperature and capacity can be represented by Figure 3.
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(3) Discharge current
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In order to extend the service life of the battery, the discharge termination voltage of the battery should be strictly controlled to avoid over-discharge, and the charge should be performed immediately after discharge to facilitate the extended battery life. Table 2 is a discharge termination voltage recommended at different discharge currents Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery
