View Full Version : new battery for the 80

Rock Dog
09-18-2010, 11:03 AM
looking to replace the battery in the 80, and reccomendations for a big powerful battery that will still fit?

09-18-2010, 12:50 PM
I have this one:
Lots of room.

Lots of people like the group 31s (mud folks are almost unanimous) but they are a little tougher to fit.

If I did it again, I'd probably try to stuff that guy in there:

09-18-2010, 01:26 PM
My group 31 blue top optima fit easy but after reading reviews of the new optima's I would not go down that road again. Mine is an older made in USA battery. Its been working strong 4 years now. I guess the new ones are made in Mexico and suffer from poor quality control.

My next (2nd) will either be the Die Hard Marine group 31 or a Deka Intimidator group 31.



09-18-2010, 01:49 PM
I have this one:
Lots of room.

I have the same one

Rock Dog
09-18-2010, 04:13 PM
Thanks Guys,
I just read a ton of posts about the Group 31 Diehard, and the great experiences people have with them.. i did not realize they had so many cold cranking amps, and had such a long reserve.. the small amount of trimming on the 3 fins that was needed to shoehorn it in seems well worth it... I also found the Deka was using the same technology... so whichever of the 2 i get the better deal on will go in!!! Thanks again!

09-18-2010, 04:25 PM
other thing to consider on the two is warranty. which one will be easier to replace on road or at home if need be? Probably the Die Hard

09-18-2010, 04:51 PM
Weight Lbs. 77.00
Weight Kgs. 35.00

Length 13.03 in
Height 8.43 in
Width 6.89 in

MAX Amps 5000
Ah 110

I know a few folks using these batteries

09-18-2010, 04:53 PM

Rock Dog
09-19-2010, 03:02 AM
I picked up the DieHard Marine Battery, Platinum PM-1 - Group Size 31M. My friends mother get's a good discount on Sears stuff (worked there for over 20 years), so i had her pick it up for me. Trimmed the 3 Fins per the threads on Ih8mud, and it droppes in like a champ, real tight fit... Need to make the new bracket, and manipulate the positive wires so they extend to the new positive post...... but it is big (like 70+ lbs), 1150 CCA, and a 3 hr reserve is way cool!


09-19-2010, 01:25 PM
reserve is the most important thing to consider. especially on newer electronic vehicles. i wouldn't go for high ccas. 450cca is factory and they work just fine in this area of the country, so i would stay in the 450 to 750. to get higher ccas, you need more plates. to get more plates to fit in a battery means thinner plates and less acid. acid keeps the battery cool and heat kills batteries. thin plates are more prone to breakage through vibration, which kills batteries.

09-19-2010, 11:09 PM
Congratulations! You need it for a $200 battery!