How long do you let a mini-motorcycle battier charged a 110cc engine.?

Answer 1

depends on charger output and how flat battery is. get a charger with a charge indicator or get a tester to see when charged

Answer 2

a new one should be charged for about 12 hours, an old one may never charge but give it a couple of hours and test from there. and remember, when you are charging a battery it should be a small charge or a trickle charge