Battery Charging

[Chester Taje]

I was wondering if there is a specific way to attach your leads to a duel battery system from your battery charger.
EG---Do you put Positive wire from charger to + on battery and Negative wire to - on same battery or put - wire to other battery.
I am just wondering what others do.

[Byron Kinnaman]

I assume that you have 2 12volt batteries connected in parallel. It doesn't matter as long as you connect the charger + lead to one of the batteries + terminal and the charger - lead to one of the batteries - lead.

[Chester Taje]

I assume that you have 2 12volt batteries connected in parallel. It doesn't matter as long as you connect the charger + lead to one of the batteries + terminal and the charger - lead to one of the batteries - lead.

Yup---In parallel

Thanks.Thats what i do.Just wanted to confirm.

[Curtis F.]

What size wires do you have between the two batteries?
Some people advocate for connecting to the + post of one battery and the - post of the other battery. Only matters if the wires connecting the batteries is undersized. If you have size 8 or larger (6, 4, or so) between the batteries, it won't make a noticeable difference. The batteries will equalize very quickly across the large cable. Now if you have a 12 guage wire, or smaller, for jumpers, then all the little electrons have to get in line and file over the narrow bridge. Think about the traffic backup that occurs when one lane of the interstate is closed. The batteries will equalize, but the one you are connected to will do more of the work.

Curt

[Chester Taje]

I have size 8 or better.