What happens if there is a power cut?

All intruder and fire alarm systems have a standby power solution, the most common being a standby battery, usually co-located with the control equipment. The battery ensures most systems remain operational during mains power outages for at least 12 hours (older systems 8 hours).  When the power is restored, the battery is designed to be recharged automatically and the system will continue to work as normal. We would recommend that you ask your installer about the battery life on the system they are installing. Even without use, all batteries have a life-span and need to be replaced periodically.