How can one calculate time needed to fully charge a battery bank ?
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Hi i like to know that is there any formula or rule through which we could estimate time needed by a battery to be fully charged ? Lets say, we have a battery bank consisting of four (4) AGM maintenance free sealed batteries, each of 12 V, 120 AH and all hooked up in series, thus making a 48 VDC battery bank. And we provide them energy through a solar charger @ 6Amps, 48 VDC. We assume that battery bank is at its Zero level. So in such as case how do we calculate time needed to fully charge this battery bank ? Regards. Omar
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Answer:
Draining a 12vdc 120AHr battery at the rate of 6 amps would take 20 hours so charging would take the same amount of time. 4 batteries in series adds up to 48 volts but still at 6 amps, all 3 batteries are draining at the same time & rate & will also charge in the same time.BUT you will need a LOT of solar batteries.
O Sharif C at Yahoo! Answers Visit the source
Other answers
Draining a 12vdc 120AHr battery at the rate of 6 amps would take 20 hours so charging would take the same amount of time. 4 batteries in series adds up to 48 volts but still at 6 amps, all 3 batteries are draining at the same time & rate & will also charge in the same time.BUT you will need a LOT of solar batteries.
Randy
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