Hi I bought a cheap G3220 battery charger
It has 3 amp settings - 0.5A, 1.2A and 2A.
I have two original batteries (not 2.0). They say "charge at 1A max".
After using the charger one doesn't work at all (the charge lights don't light up, etc) and one doesn't keep its charge very well (it used to last about 12 mins but now it lasts a couple of minutes) - the charge % in the app falls very fast at first then slows down a lot.
I'm talking with the seller at the moment... is it correct that using the 2A settings would damage the batteries?