1) Lithium ion polymer Battery capacity: 3.7V 1000mAh
2) Output voltage: 5V (max)
3) Output current: 600ma(Max)+solar battery 100(Max)
4) Charge voltage: solar battery 6V USB/DC 5V
5) Charge current : 100ma(Max) + 500ma (max)
6) Charging time < 3 hours
7) Peak power supplied by photocell: 0.61W