In Reply to: Charging batteries? posted by steveVa on January 13, 2018 at 18:07:33:
Looks like I was low! Found the following on a manufacturers website.
The truth is, most 12-volt batteries need to measure at least about 12.6 volts before they are considered fully-charged. That is because each of the six cells in a 12-volt battery should measure at least about 2.1 volts when fully-charged. Multiply that number by six cells and you arrive at 12.6 volts. Battery chemistry can vary from one battery to the next, so we say "about 12.6 volts," because a battery could be fully-charged at only 12.5 volts or 12.8 volts and some batteries may be fully-charged at even higher rates.