i don't work for anker, i don't work for a retailer, i'll just get that out of the way. (I know this is my 2nd post) i got the anker 1900mah battery thinking if i get just few more hours out of it i'd be happy. WOW -i've done two cycles, the first was 26 hours; battery then at 19%. a full charge at 5pm yesterday and 12 hours later (overnight) i'm at 91%. Both charges were done with the anker charger. next time i'll charge it in the phone and check the difference. report to follow. its nice to see that the reviews online are pretty much spot on.