Battery Tender
I pulled the batteries and have them stored in a closet indoors. Any need for a battery tender, or can I just assume they will need time to charge before next use?
Forum Discussion
centerline wrote:
as long as the batteries are good, and they are fully charged, there is no need to keep them indoors, because you dont have to worry about a fully charged battery freezing until you get down around -60 degreesF.... but a dead battery that may otherwise be able to be recharged and used can freeze at about +30degreesF, and kill it forever.
True, but a battery that is continuously float charged will have more longevity. Storing LA batteries in cold weather slows the chemical reaction so depletes a battery less. I've stored AGM's outside with no charging through -15f and, in the Spring, they only lost .10 volts.
I have 4 12V LA starting batteries that I'm tending in the heated garage. I put a 12V power supply on them a few times over the Winter. They are allowed to discharge to 12.5V and then charged with the power supply, it reaches up to 14V before the charge cycle is ended.
