Battery tender & storage

Fisherman wrote:

Gjac wrote:
I believe keeping your batteries plugged in 24/7 eats your plates away quicker than leaving your MH unplugged and recharging when the SOC reaches 80-90%.

And where does belief come from pray tell.

When the charger is on constantly a chemical action is taking place that reacts with the lead plates and sheds lead from them. I dry camp 95% of the time so my 2 6v Sam's Club batteries only get charged after a week of camping. They were purchased in 2007 and still good. My first set of Trojans only lasted 4 years under constant charge, which seems to be typical. Battery maintenance is more than just keeping your batteries plugged in 24/7. I realize most batteries die from sulfation so a battery maintainer prevents an early death, but I thing equalizing and desulfating every so often is better for battery life.