DieHard Platinum Size 34/78DT Battery for winching

[crashman]

Does anybody know if the extreme cold would affect these as bad as an OEM battery? Would I still need a battery blanket in MT, ND, MN?

I read on the description it will work in any weather or climate
I would think since there is no water in it cold should not affect it :noidea:

 

[Jeremy556]

Does anybody know if the extreme cold would affect these as bad as an OEM battery? Would I still need a battery blanket in MT, ND, MN?

I think the cold has the same effects on these batteries, but if you go group 31 and have 1200+ CCAs, even with <1/2 CCAs, is plenty. Last January, where I lived, it never got above 0F. Never used a block heater or battery heater blanket. The starter spun as fast as ever and the engine started easily, every time.