When it's battery replacement time what are you choosing?

[SPED1]

Today! 46k miles. Replacing with Interstate AGM aux and a MTX94RAGM.

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[jwilson2899]

Did mine last week, I used the Napa H7 as well as their AUX14. Caught the St. Paddy's day sale for 20% off, plus the battery was already on sale.

 

[Mules]

I talked with the techs at Antigravity, they claim no charging issues at all, the built in BMS, battery management handles the circuitry issues. They are fully designed for automotive use. My kid has had one in his ML350 (the aux battery) for over a year now with no issues.

Love to hear how it's doing if you went with the Antigravity. If these work well, no need for a dual battery setup, or a secondary power supply for overloading. You actually save weight and get 3-4 times the usable power than a stock battery.

 

[Free2roam]

Because I don't know. Are the diesel batteries any different than the gasser ones?

 

[Free2roam]

My main battery is showing 12.7 volts at rest. But still getting the start/stop message of battery charging. Have not checked the voltage on the aux battery yet. Is it easier to take it out from the top or the wheel well? 21 Ecodiesel

 

[fourfa]

On the Ecodiesel, the aux battery is directly under the main battery. No need to mess with the wheel well or liners or fusebox, just pull out the main battery and there it is.

 

[Wageslave]

Because I don't know. Are the diesel batteries any different than the gasser ones?

Diesel main batteries are bigger. Aux batteries are the same. You can upgrade your gasser to the diesel size battery by removing a piece in the bottom of the battery box.

 

[Free2roam]

Diesel main batteries are bigger. Aux batteries are the same. You can upgrade your gasser to the diesel size battery by removing a piece in the bottom of the battery box.

Any chance you have the correct battery number

 

[ShadowsPapa]

My main battery is showing 12.7 volts at rest. But still getting the start/stop message of battery charging. Have not checked the voltage on the aux battery yet. Is it easier to take it out from the top or the wheel well? 21 Ecodiesel

You can check voltage by simply removing the aux ground cable from the top of the IBS and then measure at the end of the aux ground cable and top of the main battery positive (since they are in parallel the +'s are together electrically)

Diesel main batteries are bigger. Aux batteries are the same. You can upgrade your gasser to the diesel size battery by removing a piece in the bottom of the battery box.

Only if you didn't get the aux switches.
The gassers come with two possible main batteries. You get the largest that will fit the tray when you buy the aux switch package.
Without them you get the smaller of the two.

So my main battery should be the same as the diesel main battery.
It's the largest that can fit the tray - there's no spacer.

Because I don't know. Are the diesel batteries any different than the gasser ones?

Only if you didn't get the aux switches in the gasser. If you did, they are the same.
It's in the ordering info.
I've had one of each, my 2022 has the largest battery that will fit the tray.
My 2020 without aux switches had the smaller battery.

 

[Mojave2021]

Highly recommend Odyssey and highly do not recommend Optima. Directly saw the quality of Optima degrade immensely over the past 10 years.

The Odyssey can still start up on my 77 Trans Am after a few weeks of not being started. The optima had to be on a tender if I didn’t drive the car within 24 hours.

With the Odyssey I notice the voltage is also constantly at a much higher level and not dropping as much when accessories are turned on.

 

[Rockabillyroy]

I bought the larger size odyssey online.

Bought whatever platinum advanced auto had for the aux.

 

[Free2roam]

So I have the aux switches in my diesel. Non Rubicon if it matters. Again does anyone have a part number or the battery size number?

 

[ShadowsPapa]

This is all I can find but I know I've got the sizes/group numbers of the batteries written down somewhere.........

 

[JTmac]

Changed my JTR main betterny in May. I have the auxiliary switches. I went with Optima Yellow top. Receipt shows DH7, which I think translates to H7 size group.

 

[Alpine Warthog]

Highly recommend Odyssey and highly do not recommend Optima. Directly saw the quality of Optima degrade immensely over the past 10 years.

The Odyssey can still start up on my 77 Trans Am after a few weeks of not being started. The optima had to be on a tender if I didn’t drive the car within 24 hours.

With the Odyssey I notice the voltage is also constantly at a much higher level and not dropping as much when accessories are turned on.

Agreed, I had an American Optima outlast two Mexican made ones. I think the Colorado made battery was 13 or 14 when I finally pulled it. I haven't purchased an optima since.

Interstate chassis battery gave me no complaints but the deep cells are about worthless as a house battery....

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