FOBO can be operated either by an external power supply or by its on board lipo battery. A full charge of the battery will power FOBO for over an hour.
The battery is a 2 cell lipo (Lithium Polymer) battery and must be charged with a special load balancing charger.
As with any battery, there is a chance of fire if the battery is
mishandled (over charged, shorted, etc). The battery is rated at 7.4
volts (DC), however the actual voltage range will vary from 8.4 volts
when fully charged to 6.4 volts when discharged. Things to remember when working with the battery: