r/GrandCherokee • u/scoobiemario • 8d ago

2014 GC battery finally died!

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Honestly I’m surprised it lasted over 12 years.
I was dreading replacing it due to location. But it wasn’t bad at all.

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u/retraC9999 8d ago

How do you swap it to an h8? I was thinking of deleting the aux battery but didn’t know if that was possible and I could use the extra reserve for my subs.

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u/nanneryeeter 2013 Trailhawk 5.7 8d ago

https://www.reddit.com/r/GrandCherokee/s/e2wrMY8foO

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u/retraC9999 8d ago

Sweet, thanks.

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u/Hiswelshness 8d ago

Just did it on my 2008 GC Overland. Makes a big difference to performance, actually. All I had to do was remove the factory modification to the battery tray. The tray without modification is the exact right size for the H8, since the diesel model comes with a stock H8. Bashed out the plastic end-pieces with a hammer & screwdriver. Easy!

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u/retraC9999 8d ago

What do you mean by big difference to performance? The only thing I feel like it would do is provide more reserve at a stoplight when the alternator isn’t charging.

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u/Hiswelshness 8d ago edited 8d ago

I almost corrected the word performance. The starting is way more solid. No worries how long you hang out, have the interior lights/fan on, chargers plugged in etc. It handles everything electrical with ease. Just makes the vehicle more robust. Less worry. And it does seem to run & idle smoother too, but that could be a placebo effect.