Specifications: Model: G1CH
Compatible Battery Model: GB1-1100mAh-3.8V
Operating Temperature Range: 5 to 45 celsius degree
Input Voltage: 5V
Input Current: 3A (Max)
Weight: 0.06 lb.
Charging Time* (Three batteries): Approx. 2 hours
* Charging time was tested in a laboratory environment using a CE certified USB adapter rated at 5V and 2A. This value should be taken for reference only.