Backup battery - MobileKey SmartRelay

A discharged backup battery may lead to the internal clock stopping in SmartRelays. We therefore recommend checking the time on the clock at regular intervals. A backup battery will last for about ten years if the power supply to the SmartRelay is not interrupted. This battery should be replaced on a periodical basis if SmartRelay draws on the backup battery at regular intervals due to frequent power failures.

NOTE

The backup battery must not be used if SmartRelay is powered by a battery (SREL.BAT).