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chargers #14759935 06/25/23 07:27 PM
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POPPA Offline OP
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will a two bank 12v charger charge 3 12v batteries when two are hooked up in series?

Re: chargers [Re: POPPA] #14760272 06/26/23 02:22 AM
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OnePecan Offline
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No a two bank charger will charge two batteries. To charge all three you would need a 3 bank charger.

This is the charger I bought on Amazon works great stays plugged in 24/7 kicks on & off on it's own.

NOCO Genius GENPRO10X3, 3-Bank, 30A (10A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries

Last edited by OnePecan; 06/26/23 02:29 AM.
Re: chargers [Re: POPPA] #14760287 06/26/23 02:48 AM
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tmd11111 Online Content
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You can wire one of the banks to both batteries with jumper wires. Only down side is it will deliver half the amps the charger is rated for to those 2 batteries

Re: chargers [Re: tmd11111] #14760717 06/26/23 05:43 PM
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Originally Posted by tmd11111
You can wire one of the banks to both batteries with jumper wires. Only down side is it will deliver half the amps the charger is rated for to those 2 batteries

thats what i thought and confirmed with my meter. but the charger will do it. i kinda thought the electronics in the charger maybe would fault out but no. thanks for confirmation.

Re: chargers [Re: POPPA] #14779811 07/16/23 01:43 PM
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hopalong Online Confused
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Originally Posted by POPPA
Originally Posted by tmd11111
You can wire one of the banks to both batteries with jumper wires. Only down side is it will deliver half the amps the charger is rated for to those 2 batteries

thats what i thought and confirmed with my meter. but the charger will do it. i kinda thought the electronics in the charger maybe would fault out but no. thanks for confirmation.


if you have less than 10 amps per circuit on the charger it is going to take a loooooong time if they are down past 75%. works in a pinch but it is faster and easier to just change the charger over when one is charged.


if just maintaining them it works good, had to do it once at an out of town tournament.


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Re: chargers [Re: tmd11111] #14788445 07/24/23 10:58 PM
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Originally Posted by tmd11111
You can wire one of the banks to both batteries with jumper wires. Only down side is it will deliver half the amps the charger is rated for to those 2 batteries
x2 this

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