For Letv MAX2 X820
3.85V 3100mAh/12.0WH
For LeTV X600 x608
3.8V 3000mAh/11.4WH
For Letv Leeco Le 1 Pro X800
For Letv 2 Le 2Pro X620 X520
3.83V 3000mAh/11.5WH