Join Date: Sep 2008
Location: Victoria B.C. Canada
Thanked 105 Times in 96 Posts
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Re: Battery charging question
You only need 1 positive and one negative connection. Parallel batteries act as one, no matter how many in the bank.
The best way for all connections to be made is the negative of one battery and the positive of the other. This both charges and draws evenly from each battery. If you make the connections only on one battery it will see the greatest load and the most charging.
Living aboard in Victoria Harbour