Community Forums

iMike · 05-05-2025, 05:54 PM

I'd like to put two (or four if necessary) 12v lithium batteries in my existing bay that's set up for 4x Group 31 batteries. I'll run them in series or series/parallel to make a 24v setup. Goal is to stuff as many amp hours as I can into the space. Think I should easily be able to get 800 or so in there.

G31 batts are about 13" long, 6 3/4" wide and 9.5" tall.

Most of the lithium batts I'm seeing are somewhat wider than this.

Anyone aware of a battery that's designed to fit in these slots? Thank you. Sorry if wrong forum.

TruckinRound · 05-05-2025, 05:59 PM

LiTime has group 31’s with 140Ah or 165Ah .

Phil G. · 05-07-2025, 10:22 AM

Quote:

Originally Posted by TruckinRound

LiTime has group 31’s with 140Ah or 165Ah .

FWIW, I could not find 140Ah or 165Ah Li batteries in the Group 31 size on the Li Time website:
https://www.litime.com/search?type=product&q=G31&page=1

Here's the highest Ah capacity Group 31 size lithium battery I've been able to locate - I don't know how they pack so much Li storage capacity in that small of a battery size:
https://www.lithiumion-batteries.com...on-battery.php

d23haynes57 · 05-07-2025, 10:31 AM

Look on Amazon. There is sometimes stock there that may not be available direct. There is also compact 300's now. Maybe 2 of them. Going for 24 volts I would also look at using 24-volt batteries. Multiple batteries in series are not as forgiving as parallel combinations.

Skip426 · 05-07-2025, 10:36 AM

Others have mentioned sizing ; I'm questioning " 24 volt set up " .

I'm also curious about which Class C has a coach battery bay with four group 31 batteries.

Can you post your coach , year make and model ?

iMike · 05-09-2025, 11:49 PM

Quote:

Originally Posted by Skip426

Others have mentioned sizing ; I'm questioning " 24 volt set up " .

I'm also curious about which Class C has a coach battery bay with four group 31 batteries.

Can you post your coach , year make and model ?

Posted in the wrong forum. It's a Safari Class A diesel pusher.

Skip426 · 05-10-2025, 02:17 PM

Quote:

Originally Posted by iMike

Posted in the wrong forum. It's a Safari Class A diesel pusher.

Thanks for the more detailed info on your coach .

Now that the site moderators have moved your thread to the Class A forums can you post your coach year and explain why the 24 volt set up .

Last thread that mentioned 24 volt Lithium , had the OP come back saying he needed a new thermostat and fridge control board.