Backup Battery Maintenance
For best results, discharge and recharge the backup battery twice a year. Use the Charge or Discharge buttons to charge and discharge the backup battery:
To ChargeTap the Charge button. The Discharge button text changes to “Off”. When the backup battery is charging, tap the Off button to stop the Charge process.
To DischargeTap the Discharge button. The Charge button text changes to “Off”. When the backup battery is discharging, tap the Off button to stop the Discharge process.