Another battery question

[JohnnieB]

Originally Posted by skipsmith521

I don't have a float charger...On my 36 volt cart.

If I run a charge...mine shuts off around 45.5 volts. If I don't drive it for a couple of days, it settles in at 39.9 or so and on downward over time.

Would it be best after a couple of days if no one drives it to restart the charger and top off again?

Most days it gets driven if weather is not raining, but someone in the family seems to always drive it before it gets down to 38.3 which I understand is 100% charged.

Sent from my Nexus 6 using Tapatalk

There is a gray area between keeping the batteries charged and overcharging, and everybody's situation is different, so you have to play it by ear.

The rate of sulfation doesn't kick into high gear until the SoC drops to about 70% and GC batteries tend to self-discharge at about 1% per day, so when in long term storage, the refreshing charge ought to be initiated about once a month. If your cart never sits more than a week without being used and recharged, there probably isn't much need for refreshing charges.