The good and bad decisions of the energy storage battery have a dedicated battery measuring instrument, but the general user has few such instruments, only one meter. The Tianyuan battery in the following Town, judged its good or bad, in the maintenance, for reference:
1. Judgment from the appearance: Observing the appearance of non-deformed, protruding, leakage, cracking, fried, screw joints, etc.
2, load measurement: If there is no abnormality in the appearance, the UPS works in battery mode, with some amount of load, if the discharge time is significantly shorter than normal discharge time, after 8 hours, it is not possible to return to normal alternate time, determine the aging battery aging .
3, measure with multimeter:
A, the measurement in the battery discharge mode: Measure the end voltage in the battery pack, if one or more battery terminal voltage is revealed above or lower than the nominal voltage (nominal voltage 12V / section), judge the energy storage battery Ageing.
B, the measuring in the main mode: the charging voltage of each battery end in the battery pack, if the charging voltage of one or more batteries is obvious above or lower than other voltages, the battery aging is determined.
C, the total voltage of the battery pack: The total voltage of the battery pack is significantly lower than the nominal value (as an example of the C1K battery pack is 36V), and the charging is not allowed to return to the normal value, even if it is restored to the normal value. The discharge time does not reach the normal discharge time and determines the aging of the battery. Be
D, storage battery boot measurement: UPS does not boot, do not pick up the market, first measuring the total voltage of the battery pack, as an example of C1K, at this time, the voltage may be between 36V-40V, belongs to normal, and the pen pen should not leave I have always gaked the instructions of the multimeter, and then connect the machine key. If the battery total voltage is immediately reduced to 30V or even ten volts, the UPS is automatically turned off, and the voltage immediately returns to the original value, and determines the aging of the battery.
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