Spirit Wave Battery
From Spirit System Manual
Spirit Wave Radio is equipped with LiPo battery - GensAce 6900 mAh 3.8V.
It is prohibited to use battery with a different nominal voltage than 3.8 Volts.
Always disconnect battery before changing any radio wiring or changing a components.
Do not expose electronics to a high moisture or high temperature.
Battery is installed at the tray with a velcro tape. It must be precisely positioned to avoid a contact with a nearby parts, wrong positioning will not allow mounting of the back cover.
Special care must be taken at the battery cables during Radio Chasis closing.
Operator is responsible for careful placement of the cables to avoid damage.