Battery Group Size and Rating

[Praepara Superesse]

I have the trailer towing package on my JTR and was wondering what the starter battery group size and capacity is as well as my Auxiliary battery. I think my starter is a 700 CCA. I need replace and would like to upgrade the capacities on both if that is possible. Thanks!

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[kevman65]

If you have the trailer package you have the bigger alternator, higher capacity cooling fan, and the 94R or H7 main battery (Same battery, different label). All AUX batteries are AUX 14 and/or AUX400 (Same battery, different label)

 

[Mr._Bill]

Just buying a 94R Battery from most places gets you a 100 to 150 CCA upgrade over the OEM batteries. The Aux batteries that will fit in that space are 160 or 200 CCA, there is no upgrade option.

These are what I prefer.

ACDelco Gold 94RAGM (88864542) 36 Month Warranty AGM BCI Group 94R Battery https://a.co/d/3Sf4ORo

ACDelco Gold AUX14-200 (88866185) 36 Month Warranty Auxiliary AGM 200 CCA Battery https://a.co/d/6GmPso7

 

[ShadowsPapa]

If you have the trailer package you have the bigger alternator, higher capacity cooling fan, and the 94R or H7 main battery (Same battery, different label). All AUX batteries are AUX 14 and/or AUX400 (Same battery, different label)

The larger battery comes with the aux switches, not the trailer towing package.
I had the tow package, and the smaller battery.
The order guide shows the larger battery going with the switches.
You can put in the larger battery even on those without the aux switches by removing the spacer in the battery tray.

 

[Andy29847]

Walmart - 4 year warranty - as much power as both Mopar batteries.

 

[Alaska-HWY JK]

Just buying a 94R Battery from most places gets you a 100 to 150 CCA upgrade over the OEM batteries. The Aux batteries that will fit in that space are 160 or 200 CCA, there is no upgrade option.

These are what I prefer.

ACDelco Gold 94RAGM (88864542) 36 Month Warranty AGM BCI Group 94R Battery https://a.co/d/3Sf4ORo

ACDelco Gold AUX14-200 (88866185) 36 Month Warranty Auxiliary AGM 200 CCA Battery https://a.co/d/6GmPso7

Just replaced ours with these after 5 years and 2 months. We got the aux not available battery charging on a Friday, Jeep wouldn’t start on Monday.
we live 6 miles out of town which may have helped with battery life as they’d probably fully charge each trip.

 

[ShadowsPapa]

we live 6 miles out of town which may have helped with battery life as they’d probably fully charge each trip.

You were lucky - we live 30 minutes from almost anything and I still need to use a BatteryMinder if it sits more than 3 or 4 days. Driving even 30 minutes isn't enough to keep them up.

 

[Alaska-HWY JK]

I’m surprised how short lived some of these batteries are. I’ve usually gotten at least 5 years out of them. I think the Delco in my JK is on year 7.

 

[RJWHD95]

Walmart - 4 year warranty - as much power as both Mopar batteries.

Includes free install.

 

[teamblkdog]

Just buying a 94R Battery from most places gets you a 100 to 150 CCA upgrade over the OEM batteries. The Aux batteries that will fit in that space are 160 or 200 CCA, there is no upgrade option.

These are what I prefer.

ACDelco Gold 94RAGM (88864542) 36 Month Warranty AGM BCI Group 94R Battery https://a.co/d/3Sf4ORo

ACDelco Gold AUX14-200 (88866185) 36 Month Warranty Auxiliary AGM 200 CCA Battery https://a.co/d/6GmPso7

I just replaced both batteries with these ACDelco Golds using [Banned Site]'s video as a guide.

 

[Pismo61]

Wallyworld H7 for the win.4 year warranty a they are everywhere.

 

[ShadowsPapa]

Includes free install.

Not that I'd trust Walmart to do a jeep battery install correctly without blowing the HC fuse or something........ Bet most of the installers there don't know the care or process.
Sorry, hard pass on them installing.

 

[DaBuzzkill]

Guys, you need to be deleting the aux battery altogether and not just replacing it. The system has proven itself, be problematic, and the core being the batteries being in series. Delete the aux and get a bigger main. Run ESS if you feel that system makes sense.

 

[RJWHD95]

Guys, you need to be deleting the aux battery altogether and not just replacing it. The system has proven itself, be problematic, and the core being the batteries being in series. Delete the aux and get a bigger main. Run ESS if you feel that system makes sense.

Batteries not in series.

 

[Gatorized]

What are the pros/cons of using the dual battery system with 2x group 25 Batteries vs the oem 94R or H7 main battery and AUX 14. Having the group 25s easily accessible is clearly a plus, but do you lose anything in the trade off?

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