Again, my experience my own battery 1300T climb to 4,08v I goes up to 4,2V but stops at 4,08V is the fifth charge that I let her 8 and 10 hours again the same.
Constantly illuminates in blue when charging is not the case with other companies such as batteries joytech
As for charging do four hours (from empty battery) until the green light and then goes off and the blue light button.

The own batteries e go 1300T to how many volts go;