Diehard PM-1 Battery is tired... need a replacement

[UWdave]

I've been running this battery for +6 years and it seems to be discharging on its own (unplugged from car). The closest replacement I can find is the Odyssey 31M-PC2150. Posts are slightly different but man is it expensive ($400). I don't do any overlanding or camping... I just need something to start the truck and turn the Warn 9.5XP often.

Costco has the Interstate MTX-94R/H7 for $180. It isn't nearly as beefy as the Odyssey, but seems like a good value that should do the job.

Interstate Batteries | MTX-94R/H7

www.interstatebatteries.com

Anybody have thoughts on this Interstate? Or other ideas for a $200 battery.

 

[jonheld]

I picked up an Interstate MTZ-34R in July, so I have no real long term experience with it. But it is identical to the Odyssey 34R PC-1500 for about $100 less.

 

[DSRTRDR]

you can get the correct post orientation if you search for battery sizes that have an F after the numbers - if you reverse the posts, you will need to pull really hard on the cables, not a good idea

we are running the Batteries Plus extra power 27F in the 80 and LX - $365 out the door in Arizona

 

[Railwelder93]

I got an autocraft gold a while back it seems fine, less than 200$.

 

[woodsman 44]

Yup a 27F is the right post configuration for the 80 series

Im running a 27F Optima yellow top, so far so good.

 

[scottryana]

I use an Odyssey 34/78 PCM1500. A little smaller than the 2150, but you get terminals on the correct side as well as the front for the winch.

 

[jonheld]

you can get the correct post orientation if you search for battery sizes that have an F after the numbers - if you reverse the posts, you will need to pull really hard on the cables, not a good idea

Not sure what you're referring to. Both batteries I mentioned fit without issue, both size and cable wise.

 

[shocktower]

I like Deka batteries and you could stuff a 31 series in there and run other things without a second battery