Why does the 48v30A lithium battery run out when using 48v?

Introduction Why does the 48v30A lithium battery run out when using 48v? Judging from the described situation, even if the entire charging process is a constant current of 3A, in theory it is not enough to charge the battery.

Why does the 48v30A lithium battery run out when using 48v?

From the situation described, even if the entire charging process is 3A constant current, it can theoretically only charge less than 16ah of electricity. The battery described in the question is 30ah, so there are several possible situations, 1. . The battery is old or falsely marked and the capacity is not enough 2. There is a problem with the protection board and the protection threshold is too high, causing the power supply to be protected without being released. groups of cells have unbalanced tension. Whatever the reason, the battery core should be tested to determine it.

The acceptable power of the 48V30A battery is 48*30=1440WH. Under normal circumstances, the power reception efficiency of the battery is about 70%. The charger efficiency is calculated at 80%, so the power consumed by a full charge is The battery capacity is approximately:

1440/70%/80%/1000=2.57 kWh

I hope this is useful to you.

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