Dual Battery

Chemdawg

Petty Officer 2nd Class
Joined
Aug 31, 2013
Messages
112
Battery 2 has a bad connection or the battery is bad.

The battery that the switch is selected to will get charged.

My hydraulic pump was always wired separately to the battery. So I left it right where it was. Hence why it only works when it's on battery 2. That works fine. I just didn't know how the charge would work. I don't think I'll ever put it on both, because I'm not sure the alternator can handle charging two batteries, and if it does, it won't be very efficient.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Is the outdrive tilt system wired directly to battery #1. If so, then it will only work on BAT #1 or BOTH.
 

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
42,581
My hydraulic pump was always wired separately to the battery. So I left it right where it was. Hence why it only works when it's on battery 2. That works fine. I just didn't know how the charge would work. I don't think I'll ever put it on both, because I'm not sure the alternator can handle charging two batteries, and if it does, it won't be very efficient.

Your ALT puts out more then enough to charge both batteries, that said it puts out more then one bat can take at one time. I an ALT puts out more then one can take it is lost. It also takes time not just output amps to charge a bat or bat's, so you have no worries other then time it takes to charge them back up
 
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