US145XC2美国U.S蓄电池6V251AH适用于各种工业设备
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Periodic battery testing isan important preventive maintenance procedure. Each cell of thehydrometer (fully charged) gives a sign of balance and the truecharging level. Imbalance may mean the need for balance; It isusually a sign of improper charging or damaged cells. Checking thevoltage (open circuit, charging and discharging) can locate afaulty or weak battery. Load testing will pick out a faulty batterywhen other methods fail. Weak batteries can lead to prematurefailure of matching batteries.