Best batteries for -50°F weather?

[nycxjeremyy]

Looks like my batteries are going out, I'm currently stationed at a place where it can get up to -50°F in the winters (Midwest). No, the Dorms/Barracks here do not have outdoor outlets, so i won't be able to use a block heater.



What is the best extreme cold rated battery you all recommend?



(1985 6.2 Detroit Diesel)

 

[MrMarty51]

IDK what @denata has for batteries in His Hummer but they must be some good units.
Only other thing is when You get where Your going, disconnect them batteries and pack them indoors with You.
Might want to drain the oil and take it inside too.

 

[Twisted Steel Performance]

One with the longest warranty.

 

[denata]

I use batteries, two connected in parallel. 78DT-850 95 Ah My batteries are "Delkor" brand, they are produced under the "American", "Deka 778DT" brand. They are not serviceable, they do not have a plug for draining and filling the electrolyte. If you have a choice, buy a battery with plugs, you can increase the density of the electrolyte for winter work.

 

[MrMarty51]

I use batteries, two connected in parallel. 78DT-850 95 Ah My batteries are "Delkor" brand, they are produced under the "American", "Deka 778DT" brand. They are not serviceable, they do not have a plug for draining and filling the electrolyte. If you have a choice, buy a battery with plugs, you can increase the density of the electrolyte for winter work.
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I knew there’d be a good response from the coldest city on the planet.
Thank You for stepping in.

 

[Will L.]

@nycxjeremyy you mentioned it’s -50 where you are..
Fingers must be frozen because you mis-typed something about getting batteries.
It’s ok- we know you meant a plane ticket to get out of there…

Seriously no power outlets- what about a webasto?

 

[3500GMC]

To the original poster, that's a tall order for a IDI diesel anything with a minus 50 temp. Go old school with a pan of charcoal under the oil pan and wrap the engine. Maybe. Cranking RPM is your friend. Hook a welder/genset to it?

 

[MrMarty51]

Or one of those suitcase size generator plants that You can pack inside.
Fire it up and plug in the truck block heater a couple hours before time to leave.

 

[Will L.]

Yes- I didn’t want to say using a webasto instead of getting the best batteries you can. I meant to imply just the best batteries will not be enough.
If you are not familiar with the powermaster 9052- lesrn it is a major difference in cranking speed, and also your factory sized battery cables were grossly penny pinched by design. There are threads here that cover both of those major improvements to help you start-
Also hoping you understand the AC Delco 60G and using increased glow time from them - DO NOT go for things like insta heat plugs that can destroy your engine.

 

[RI Chevy Silveradoman]

Maybe grab a small portable jumper battery setup. Keep it plugged in inside your home and use it to get truck started. Just thinking outside the box here.
Thank you for your service to our great country.

 

[MrMarty51]

Yes, thank You very much for Your service.
Is Your 6.2 truck an ex military unit ?

 

[MrMarty51]

There are the Lithium Iron batteries that the cold is not suppose to affect.
IDK a thing much about them except that they weigh about ninety percent less than a regular lead acid battery.
Oh yesh, and a ton more money.