How do I charge my iSee camera's battery? (SUNSPY)

How do I charge my iSee camera's battery? (SUNSPY)

The batteries can be charged by plugging the USB cable into a computer or by using the AC adapter that came with the unit. Charging usually requires 3-4 hours for a full charge. It is also suggested that you charge the batteries before using if the device has not been used for a while.