winter battery keeping

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Joined
Aug 13, 2010
Messages
885
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Location
Conway, S.C.
My Car
1972 MACH 1
2019 F150
Hello everyone. What's the best way to maintain the battery over the winter when car is not run. I've been running the charger on 2amps for awhile every week while in the garage. I leave it connected a start it every few weeks.

Alan L

 
The way you're doing it is fine. You can hook up an automatic "battery tender" to it, and just leave it on all of the the time. Most automatic battery chargers will overcharge the battery if left on full time. For the car owners that live further north, it's very important to keep their batteries charged, to keep them from freezing and breaking.

Because the tops of batteries are sealed, now, you can't check the voltage of each cell, so checking the specific gravity of the acid in each cell is one way to make sure the battery charge is adequate, and each cell is good. You can also take voltage measurements of the battery, 13.2 volts is fully charged and I would recharge it when it drops to around 11.5 to 12 volts. A bad cell can mislead you, though, and the battery voltage will be fine until you put a load on it.

 
I bought a trickle charger from Harbor Freight, they call it a float charger. I'm using it on my mothers 1992 Buick LeSabre. My parents bought it new in 1992 and only has 36,000 miles on it and got tired of replacing batteries. The float charger is working great so far.

It's only $10:

http://www.harborfreight.com/battery-float-charger-automatic-69594.html

 
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