
Pay by Transfer

PayPal

Shop alarm batteries and power supplies for intruder alarm systems, including backup batteries, replacement batteries and PSUs for panels, sounders and wireless devices.
Narrow the range by brand, system type and compatibility.
Showing all 56 results
Alarm batteries help keep systems operational during a mains power failure. Lead-acid backup batteries should be checked regularly and replaced when they no longer hold sufficient charge. Wireless sensors may also require model-specific replacement batteries.
Match the voltage, battery type, amp-hour rating and connector style to the original panel, sounder or device specification. Incorrect batteries or PSUs can reduce standby time or prevent the system operating correctly.