BEFORE USING BATTERY USAGE■ BATTERY CHARGINGPOWER CONNECTIONEnsure the battery is installed.Plug the Wall Charger into a standard outlet. Plugthe other end of the Wall Charger into the bottomof the device.16• When you charge the battery with the device off, youwill see a charging status screen. You cannot operate thedevice until it is powered on.• Fully charge the battery before use.• It is more efficient to charge the battery with the devicepowered off.• The battery must be connected to the phone before it canbe charged.• Battery life gradually decreases over time.• If the battery fails to perform normally, you may need toreplace it.➊➋