Sorry but your question is garbled in terms. Do you want to know how many kilowatt hours of AC power is needed to change the battery, so you can know what it costs to charge it?
Sorry but your question is garbled in terms. Do you want to know how many kilowatt hours of AC power is needed to change the battery, so you can know what it costs to charge it?
Figuring for a 54v output at 40 amps, your DC side would be 54*40 watts....call it 2000 watts. The AC side would be something like 1.15 times that, say 2300 watts. That would be needed for a little more than 300/40 hours...say 8 hours. 2300w * 8 hours would give you about 18-19Kwh....roughly....if I didn't miss a step.