Chargers can't force amperage, it can have supply limitations though. What happens is that the charger can supply a voltage and amperage comes in as a limitation of the charger if the battery wants more than the charger can supply. If the battery is at 12v and the charger is supplying 14.4v the battery, the battery will only take what it can to equalize. Like you said the charger at this point should lower voltage to match and maintain the battery at full charge.
Not trying to give you a hard time here. Not my intent. However I said ZERO about “ forcing amperage.
What I clearly stated was amperage being accepted and at what voltage…
“ Without knowing the chargers amperage rating and not knowing how much amperage that battery is actually accepting. “
That was my point there.
If you don’t have a ammeter… then we do not know how much amperage is being ACCEPTED by the battery…
You are flying blind …. 14.4 volts means nothing without knowing the acceptable of amperage by the battery… And if we don’t know what amperage that charger is… Its all a wild ass guessing game….
It can be 14.4 volts but if 0.4 amps are flowing… That battery is nearly fully charged… If it’s 14.4 volts and say it’s a 10 amp rated charger and 6 amps are flowing… Than that battery is a long, long way from being fully charged.
That’s what I was saying here…
We had a member on here who used a adjustable power supply system to charge his batteries… He would crank up the voltage and amperage to nearly 40 percent of the rated amp hours those batteries were rated for… He would push 40-50 amps into a 130 amp hr rated battery for 10-15 minutes… Then he would manually adjust the voltage and amperage downward from there.
This member used an ammeter while recharging his Thin Plate Pure Lead batteries. To know what the battery was accepting at what voltage. He got nearly 1,200 deep cycles on that battery. Quite remarkable.