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#11822879 - 09/11/16 12:10 PM Deep cycle batteries help please
texboxer Offline
Extreme Angler

Registered: 12/18/10
Posts: 1255
Loc: Hewitt/Waco
Currently I have two Interstate batteries,
group 27,
cranking amps 750,
Reserve 160.
My question is.....can I put a battery from a group 29 with the 27 or should I keep them the same?
How about cranking amps, keep them the same or can I get one with higher cranking amps?
Same question with reserve capacity?
Also a completely different battery, like one from Sam's or Wal-Mart or academy, would that be ok to put with the interstate battery to get my 24 volts?
As is obvious, I know nothing about batteries so any and all input will be greatly appreciated.

Edited by texboxer (09/11/16 12:15 PM)

#11822908 - 09/11/16 12:36 PM Re: Deep cycle batteries help please [Re: texboxer]
Ken Gaby Offline
Extreme Angler

Registered: 05/08/07
Posts: 2809
Loc: Belton, TX
Won't hurt to mix them. Keeping them the same will help with even draw of amps from the batteries. However, if one battery is weaker than another, which happens after some use, then draw from the batteries will be uneven anyway. There's some good info on the net about charging batteries and how deep cycle batteries need to be maintained. Here's one source that makes chargers that has good info about batteries.
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#11822980 - 09/11/16 01:25 PM Re: Deep cycle batteries help please [Re: texboxer]
texboxer Offline
Extreme Angler

Registered: 12/18/10
Posts: 1255
Loc: Hewitt/Waco
Thank you very much.

#11823006 - 09/11/16 01:44 PM Re: Deep cycle batteries help please [Re: texboxer]
leanin post Online   content
TFF Celebrity

Registered: 08/18/09
Posts: 5805
sams club sell marine batteries in energizer brand, group 29. im on my 3rd year with them, but hadnt used them too much the last 2 years. havent ever had to add electrolite to them, either.
batteries are wierd, a cold snap can kill them, a hot snap can kill them, non use can kill them, maybe some day they will be alot better, but for boats, they havent changed much over the decades.

Edited by leanin post (09/11/16 01:45 PM)
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