https://www.alliancetruckparts.com/P...ical/Batteries

Group numbers seem to be different between auto and heavy truck applications.

After I get a winch mounted, l'm going to mount another battery somewhere beneath or within the rover...that way l'll have plenty of amperage for winching.

Brian.

 

I've never been in a parts store that didn't have group 65 AGMs, and I make a point to look.

The AGM I have is an Autocraft brand which is the Advance Auto house brand. It's been completely discharged four different occasions and its still under daily use in my Silverado. Thinking back now, it's at least 2.5 years old because I got it when the 6 month old Optima died in -12 degree weather. On top of being completely discharged multiple times, I also forgot and left the truck on in the accessories position for an extended weekend once. Four days I think. When I got home she cranked right up. This is with the radio on (volume was all the way down, but still draws power). It's a stereo system with two amps; one to run all the speakers and one to run a subwoofer. High draw system. I've run a ton of stuff off of it at a time. Stereo at full tilt, HIDs, high beams, halogen off road lights, and electric fan all going at the same time. She performs great.

Plus, can't beat the four year warranty on them from Advance. There are also usually discounts on their website. A checkout code listed on a banner at the top of the page, usually, and you can order them for in store pickup if they're in stock. Just checked; it's 20% off for the next 3 days. That brings you down to $152.70-ish out the door.

Here's the direct link to the battery on their website:
https://shop.advanceautoparts.com/p/...hTerm=group+65

 

The factory terminals are sh*t, though. While you've got the battery out you should replace them with these:

https://shop.advanceautoparts.com/p/...tery+terminals

I've used them a bunch of times and they're great.

 

I made a base to hold the largest AGM i can fit. 8M-AGM

 

That's some next level sh*t, Gerry.

 

I Googled 8m-agm and didn't come up either anything? I recognize the duralast brand, but what model is it?

 

Here is what I have installed. I just checked the specs but seems to be a bit higher than the $300.00 Odyssey PC1700.

 

Gonna replace my Duralast Gold 0.97v after sitting at my buddies shop for a few months...but still started the truck after a couple cycles on my CTek smart charger. Got a 25% coupon for Advance Auto the other day. That Platinum 65 AGM looks good to me.

 

 

I've always used a 120amp ~800 CCA genuine LR D2 battery and only had 2 in 15 years and the second existing is still working OK, expensive yes, but they do last well. The D2 has 140K+ miles now and it's an all original TD5.