Charging time

11 hr 7 min

to charge from 0% to 100%

Charge needed (100 Ah x 100%)

100 Ah

Put in at 90% efficiency

111.1 Ah

Time at 10 A

11.11 hours

Lead-acid chargers slow down for the last 20 to 30%, so a real charger can take longer than this to reach 100%.