Battery Size

hillstrubl · Oct 14, 2024

In my 2011 Tahoe (GMT900) I read that OEM was 94R but had an group 48 in it. I replaced with a 94R (had to get the coolant overflow tank out of the way) but unfortunately it still "spills" off of the tray slightly. It is TIGHT in there. The group 48's slightly smaller dimensions definitely were a better fit. Yes I have 60 more CCA but if I did it again I'd do a 48.

Geotrash · Oct 14, 2024

hillstrubl said:
In my 2011 Tahoe (GMT900) I read that OEM was 94R but had an group 48 in it. I replaced with a 94R (had to get the coolant overflow tank out of the way) but unfortunately it still "spills" off of the tray slightly. It is TIGHT in there. The group 48's slightly smaller dimensions definitely were a better fit. Yes I have 60 more CCA but if I did it again I'd do a 48.

I didn't have any trouble getting a new 94R into our 2018 by laying it on its side, as others have suggested. The factory flooded battery didn't leak a drop when I laid it on its side to get it out, either. Took 10 minutes max to do the swap.

hillstrubl · Oct 15, 2024

Geotrash said:
I didn't have any trouble getting a new 94R into our 2018 by laying it on its side, as others have suggested. The factory flooded battery didn't leak a drop when I laid it on its side to get it out, either. Took 10 minutes max to do the swap.

I assume you meant a non-flooded 94R? Even if I laid this one I bought on its side (I wouldn't do that with a flooded battery) you'd have to change around the battery tie down(s) (not use the factory one) but you'd still have the same issue with length where it sits on top of the right side (aka front of tray) lip.

Geotrash · Oct 15, 2024

hillstrubl said:
I assume you meant a non-flooded 94R? Even if I laid this one I bought on its side (I wouldn't do that with a flooded battery) you'd have to change around the battery tie down(s) (not use the factory one) but you'd still have the same issue with length where it sits on top of the right side (aka front of tray) lip.

View attachment 440507

Ah, I can see where you would conclude that from my post. Sorry for not being more clear. I only meant turning the battery on its side to get it in/out. I set it back upright once I got it in there.

Side note: mine is a 2018 Suburban 3500HD, so it came with two flooded lead acid (not AGM) batteries from the factory.

MrMonte · Nov 7, 2024

By removing the support bars around the battery you can easily pull the battery up & out. Makes for an easy swap. I ended up installing a H8/49 battery which is bigger so I did remove the bolts to the radiator overflow so I could slide it over but did not remove it.

BeenChevy · Nov 7, 2024

Agreed with installing the larger H8/49. Didn't have to remove the rad overflow bolts but did have to turn the batt on its side to install. Will probably have yo pull the 6.2 to ever get it back out. :buffer:

Battery Size

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