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Gulfcoast's avatar
Gulfcoast
Explorer
Feb 12, 2015

Bus battery charging...

I need to keep the batteries in our school bus topped off so they will last longer. Just simply trickle charge the two 8-D batteries and nothing more. It just sits under a shed and the batteries go down from not being used that often.

I need to use solar since the nearest power (110v) is about 300 ft away. About how many watts would it take to keep the two 8-D batteries topped off year round? We are in the southeast USA, and the bus is 24-volts.

One more thing... it seems wasteful to go from 12v solar to a 110v inverter, then back to 24-volts to charge the batteries.

Thanks for your help.

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