How to calculate Battery back up time for a 400 AH Battery
bank having a load of 20 Amps and charging time required to
fully charge this battery bank?
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Answer Posted / abhishek goyal
We need information about voltage level or range.
if voltage is high so that current is less in other
condition it will reverse.
We can calculate if know about the voltage , current and
load etc.
P=VI (KVA)
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