http://evbatterymonitoring.com/WebHelp/Battery_Book.htmlots of info, Especially the part that suggests recharging at too low a level of discharge wastes energy.
Also graphs showing returned power at what state of the charging, I found interesting.
I have been worried about my “new” bank since I installed last summer, this has answered loads of Q’s.
i know aimed at the forklift user, but good base for info.
thought it may have been of use to others, if not already read.
steve