The K0257 is the replacement backup battery for the Honeywell 5800RP wireless repeater, extending the range of 5800 series of wireless devices. The K0257 comes in two variations: The standard model @ 800mAh for 5hr backup, and the Extended Life @ 2000mAh battery offering twice as much alarm backup duration and lifespan.
We recommend the Extended Life model which is suitable for all Honeywell 5800RP repeater systems, offering a greater back up period ensuring your property is safe & secure for longer.
Compatible with the following Honeywell Systems: 5800RP repeater only.
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Other batteries for a range of alarm manufacturers are available, please see our other listings. These batteries should be replaced every 3 years to ensure your alarm has enough battery power to sound the alarm in the event of a power cut. If your control panel is beeping, it could mean a new battery is required. A flat battery will cause an alarm to sound.