Quote:
Originally Posted by Ggg
There are s few different ways to run dual batteries. There are pros and cons to all of them. I run my dual batteries in parallel which gives me 12v but double the amperes. I do not run a battery switch or isolator, they perform like one large battery, and it is very simple as in the KISS principal. No special alternator wiring either.
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Been there done that. It does work well. However, i found out later when 1 of the battery failed, the other battery tried to equalize with the defective battery causing both to have insufficient voltage the next day. So with this in mind, when both battery are being charged by the alternator, both battery are also trying to equalize at the same time..