backup battery for home alarm system

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Last updated on 07.09.2026

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FireAngel SW1-R Mains Smoke Alarm/Detector for Home with Backup Battery | 1-Pack, Interlinked, Hard Wired Smoke Alarms for Home with Test Button and LED Indicators

Fireangel

free shipping

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9,9

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SimpliSafe 10 Piece Wireless Home Alarm System with Motion Sensor, HD Security Camera and Outdoor Siren - Home Security Systems with Optional Monitoring and No Contracts

SimpliSafe

free shipping

To the product (1 offer)

9,8

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Yucel/Yuasa Y2.1-12 Sealed Lead Acid Battery 12v 2.1ah Fire Alarm Panel Back Up

WITPOCE

6% off

free shipping

To the product (4 offers)

9,7

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Casil House Alarm Battery UC1221/CA1223 12V 2.3AH Alarm Panel Battery Replacement for Honeywell

ea_ltd

6% off

free shipping

To the product (1 offer)

9,7

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New Kidde FireX KF20 Mains Powered Optical Smoke Alarm Fire Detector with 9V Battery Backup

iXium

free shipping

To the product (2 offers)

9,6

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CPVAN Home Alarm System, 2.4G WiFi PIR Motion Sensor Alarm, Wireless DIY Smart Door/Window Alarm for Home Security with Phone APP Alert, White

CPVAN

free shipping

To the product (1 offer)

9,5

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BatterEasy Replacement Battery Designed to fit Yale Smart Hub 2.0 Alarm Back Up Battery SR-HUB SYNC IA

BatterEasy

free shipping

To the product (1 offer)

9,4

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BLACK+DECKER - Mains Interlinked Kitchen Heat Alarm with Battery Backup | Interlinked Heat Detector For Home, Kitchen and Garage. FAST FIX Easy Installation Base, white with Test Button

BLACK+DECKER

15% off

free shipping

To the product (1 offer)

9,3

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Powersonic 12v-2.1ah fire retardant alarm panel battery,optima,accenta,texecom

Power Sonic

free shipping

To the product (1 offer)

9,3

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UPLUS LP6-5.0 6V 5Ah Rechargeable AGM Battery F1 Terminal, Maintenance-Free | 70L×47W×100H (mm), low self-discharge, use for: ride-on toys, UPS, alarm, emergency light, roller shutter

UPLUS NEW TECHNOLOGY BATTERY

free shipping

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9,2

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You might also be interested in these backup battery for home alarm system.

12-Zone Wired Smart Alarm Panel - Konnected Alarm Panel Pro Conversion Kit - Make Wired Alarm System Smart - SmartThings, Alexa - No Batteries or Monthly Subscription - Wi-Fi & Ethernet Connection

Konnected

£ 207.60 free shipping

To the product (1 offer)

Yucel/Yuasa Y4-12 Sealed Lead Acid Battery 12v 4ah Fire Alarm Battery Back Up

Yucel / Yuasa

£ 21.20 free shipping

To the product (1 offer)

Live External Bell Box for Wired Intruder Burglar Alarm System - Delta Shape - Twin Flashing LED, Strobe, Anti-Tamper, Back Up Battery. IP65 Rated

Wholesale Security

£ 48.99 free shipping

To the product (1 offer)

OSI Alarm System for Home Security (Gen 2)11 piece. DIY, Touch Screen, Motion Detection, Contact sensors, Wireless Siren, Remotes, Phone App, Compatible with Alexa, Continuous Updates,NO Monthly Fees

OSI Go Direct

£ 246.45 free shipping

To the product (1 offer)

Aico Heat Alarm Ei144RC - Mains Powered with 9V Battery Back-up

Aico

£ 45.90 free shipping

To the product (3 offers)

32% off

Ring Alarm Pack - S by Amazon | Smart home alarm security system with optional Assisted Monitoring - No long-term commitments | Works with Alexa

This Alarm Pack is ideal for apartments and 1 bedroom homes.

£ 149.00 free shipping

To the product (10 offers)

10% off

XNY 12-Piece-Kit Full Touch Screen Wireless Smart Home Alarm System, DIY 4G and WiFi Burglar Alarm System for Home Security with APP Alert, Motion Detector, Door Window Sensor, Remote Control, Siren

XNY

£ 89.99 free shipping

To the product (1 offer)

GSM Audio Intercom, Hands-Free Access Control System with Remote Mobile Phone Control, Built-in 1000mAh Battery for Power Failure Backup, Weather-Resistant ABS Housing for Home, Gate and Office Entry

Pilipane

£ 138.08 free shipping

To the product (1 offer)

EZVIZ Indoor Security Camera WiFi, Pan/Tilt 360°, 2MP HD Camera, C6N Black | Pan/Tilt,Human & Pet Detection,2.4GHz WiFi, Baby Monitor, Motion Detection, Auto Tracking,Night Vision, Alexa Compatible

EZVIZ

£ 17.99 free shipping

Only:

4hrs

55min

01sec

To the product (3 offers)

Yucel/Yuasa Y2.8-12 Sealed Lead Acid Battery 12v 2.8ah Burglar Alarm Back Up

PetrolScooter

£ 19.49 free shipping

To the product (3 offers)

Cavius System RF Mains Powered Heat Alarm with 10 Year Lithium Battery Backup

Cavius

£ 59.70 free shipping

To the product (1 offer)

Kidde Firex KF3 ( Mains/Battery Heat alarm )

Kidde

£ 32.91 free shipping

To the product (2 offers)

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