How to wire a third battery
I have a RIB with twin engines. Currently I have two batteries each charged by / starting a separate engine.
I want to wire in a third battery to supply the ancillary equipment (plotter, VHF, sounder, bilge pumps etc). Reason for this is that i want to run the auto bilge pump off the third battery so I don't run the risk of flattening a starting battery.
Hope that all makes sense.
The question i have is if i want to charge the third battery how do i do it? If i wire it to another battery (of greater amp/hr) in parallel to draw charge will that drain either of the connected batteries as the third battery i have is less amp/hr than the starter batteries? Or is it less hassle to just have the third battery the same amp/hr than a starter battery?
I look forward your thoughts!!
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