razorb

Can you use a 12 volt deep cycle battery in a car or truck?

777stickman

I would say yes, but someone else may step in and refute that.

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"R57 3CAR" 210 2dr post. 420HP 355 F/I 4sp 3:42 posi. (Dale Earnhardt tribute done by me.)
75 GMC Vandura 3/4 Ton
78 Chevy K5 Blazer
98 Chevy K2500 Suburban LT/7.4
05 Dodge Ram 3500/Cummins (Wifes horse hauler)

MT-2500

You can but.
It does not work out real good for the battery.
The high amp charging of car alternators is hard on deep cycle batterys.
Deep cycle battery charging should be done with a deep cycle alternator/generator setup or a deep cycle battery charger.

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Remember proper testing gives us the answer to many problems.
MT

J-Ri

Optima makes a deep cycle/starting battery that is designed to be used in cars/trucks... I would assume that it can take the higher amp charge If my old '02 Duralast ever starts to weaken, I'm getting an Optima for my truck.

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'04 Cavalier coupe M/T 2.2 Ecotec
Supercharged 14 PSI boost, charge air cooler, 42# injectors
Tuned with HP Tuners

So I go to this get-together at a friends house, not remembering it's a few days before Halloween. I see a bunch of dirty looking strangers. Then I see a guy that was clearly wearing a Halloween costume and I make the connection, and say "Oh yeah, Halloween... y'all goin' as a group of bums?". Turns out they weren't wearing costumes.