Hi,
I'm getting "Alert-Batt low" message when arming system (partial, code+A+zones, haven't tried full) and system doesn't arm. It's otherwise perfectly working system with no issues, have used it for years. I suppose (after reading installer manual), that this means the rechargeable backup battery in central unit is dead, not the coin battery used for RTC and non-volatile memory? Backup battery is about three years old, not stellar life time for battery, but those are reasonably priced.
I'm getting "Alert-Batt low" message when arming system (partial, code+A+zones, haven't tried full) and system doesn't arm. It's otherwise perfectly working system with no issues, have used it for years. I suppose (after reading installer manual), that this means the rechargeable backup battery in central unit is dead, not the coin battery used for RTC and non-volatile memory? Backup battery is about three years old, not stellar life time for battery, but those are reasonably priced.