Using Deep Cycle Battery as Starting Battery

Status
Not open for further replies.
Joined
Mar 2, 2004
Messages
4,408
Location
Kentucky
I keep a couple group 27 deep cycle batteries around the house for running inverters when we go camping. I also use them occasionally to start dead vehicles, such as when my wife leaves the interior lights on in the car all weekend.

Does using a deep cycle battery as a starting battery shorten its life?
 
We put a big old deep cycle in a buddy’s 80s dodge van. His wife would regularly flood the engine and abandon the van on the side of the road. He would go get it at the end of the day and the hazards would have killed the battery. So we put the largest deep cycle we could find in it. She’d continue to flood and abandon it, but repeatedly he’d get there 9 hours later and the blinkers were still going and it’d start right up. After a year the battery was still going strong. He did charge it overnight when all this happened.
 
I ran the yellow optima in my race car when I put the battery in the trunk. I believe that was their deep cycle option. I never had a problem and the car was rarely driven, just to race and occasional ice cream runs. Cranked fast and strong no matter how long it sat.
 
As long as the cca/ca rating is appropriate, it shouldn’t be that big of a deal. If the draw on it is too great, it can get very hot inside and degrade. So it depends upon duty.
 
I have a deep cycle battery on my motorcycle and 6.5 years in, it still works fine. As long as the engine is a near instant starter I can't see it doing any harm.
 
Nah it won't hurt a bit.

Northstar AGM TPPL batteries are sold has deep cycle/starter batteries... And have a 5 year free replacement warranty.

Their group 24f battery weighs 56 pounds... Versus a high end top tier flooded group 24f battery that weighs 44 pounds.
 
Status
Not open for further replies.
Back
Top Bottom