What batteries do I need

[Maineforlife87]

I have a HMMWV M1123 with a 6.5 non turbo engine looking for what size batteries I need for it any information would be greatly appreciated thank you

 

[Mullaney]

I have a HMMWV M1123 with a 6.5 non turbo engine looking for what size batteries I need for it any information would be greatly appreciated thank you

.
You can use 24 or 27 series standard batteries.
Or, you can use the factory type (almost square) batteries.

 

[TNDRIVER]

I have a HMMWV M1123 with a 6.5 non turbo engine looking for what size batteries I need for it any information would be greatly appreciated thank you

6T's from the Government side. Group 24 are the right size height wise. I will not give advise but tell you what I've done. One truck has Odyssey 6t's , one replaced under warranty but will not use them again they have become stupid expensive. The other truck has Wall World Group 24 AGM's . The W W batteries have a better warranty (It seems to change a bit depending on where you live.) and price. The same battery is available from the usual suspects but more expensive. If you use the 24's place some blocking and/or anti skid material under/ around the bottom of the batteries. Works for me.

 

[Milcommoguy]

DITTO with the gorilla guy. Warranty and availability, over the counter at discount stores. Lasts just has long, a LOT easier on the wallet & 6TL's too damm heavy.

Be nice to them.. They don't have 9 lives. PMCS, don't leave them dead or dry, over / under charged (float) and figure 5 years. My old auto shop teacher said "Wet cell battery has two states. Charged and discharged" Not a very good storage battery

IMO...Don't monkey around with got's to be OEM, CAMO

 

[TOBASH]

$60 24f from Wallyworld

 

[Mogman]

Do you have a "company" Interstate battery store near you?
If so I would look to see if they have any AGM "recon" group 24, 27 and IIRC someone managed to stuff some group 31 batteries in there.
I have had real good luck with the "recon" batteries which are 99% just batteries that the shelf life has expired on.
I personally would never run standard lead acid batteries in a passenger compartment because of the chance of a hydrogen explosion given the rather sealed battery compartment the HMMWV has and of course if you are ever unlucky enough to roll it then you have an acid spill to deal with although there would be a rather small chance of that happening.
I had a real bad run of Wally World batteries, three that just quit, no warning and no output, but your mileage may very..

 

[TNDRIVER]

$60 24f from Wallyworld

AGM's ,you can dunk them. Not $60.00