Murknyaz

Can anyone please help? On my reuleaux ive ran the case analyzer and batter analyzer (new-LGh2-3000mah) Why when im charging via usb, around 90% charged the charge rate drops below .2 amps (1 amp charging block)? When i take the batteries out and put on my external charger they each read 4.1v. I just want my reuleaux to be as accurate as possible.