diy solar

diy solar

Fishing Boat Setup for Solar & Alternator Charging

bporto

New Member
Joined
Nov 19, 2020
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I have a small fishing boat with a 24v trolling motor fed by 2 Battle Born Lithium Iron Phosphate batteries and a 12v AGM starting battery. I would like to be able to charge the trolling motor batteries with the alternator when under power and solar when sitting at home. I would love to use something like the Renogy DCC30S, but with the systems having 2 different voltages I don't know if this is possible to run a battery in series for discharging and parallel for charging.


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@snoobler, That is exactly what I was looking at with a separate solar charge controller for the 24v bank and 12v bank. I just didn't know if there was a more elegant / simpler solution. I thought about building a custom relay switch where it would be able to switch the 24v battery bank from a series wiring setup to a parallel setup, but it was getting expensive to go that route too.
 
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