Battery Backup Home Alarm Systems

731 results

Yale HSA Series Premium Plus Alarm Kit
Brand new · Yale
(11)
£109.99
Free postage
Click & Collect
288 sold
Yale Smart Hub Alarm Back Up Battery SR-HUB SYNC IA 310 320 330 340 802306043H2
Brand new · Yale
£15.99
Free postage
Click & Collect
Only 1 left.
Response Alarm Battery HW10 WP1 6v 1.2Ah GENUINE Response Battery KIT / SA Range
Response Alarm Battery KIT / RRP £29.99 ( SAVE £15.00 )
Brand new
(141)
£14.99
£2.99 P&P
Only 1 left.
A1 Security Alarms AJ400 Burglar Alarm System Boxed Vintage
Pre-owned
£19.95
or Best Offer
£5.99 P&P
Click & Collect
10 watching
Honeywell CASIL Security Alarm Battery 12V 2.1Ah / 2.3Ah Rechargeable Burglar
Brand new · Honeywell
(41)
£11.99
Free postage
Click & Collect
550 sold
YUASA For Honeywell Security Alarm Battery 12V 2.1Ah /2.3Ah Rechargeable Burglar
Brand new · Yuasa
£14.99
Free postage
Click & Collect
332 sold
Yale HSA Essentials 5 Piece White Wireless Alarm Kit - YES-ALARMKIT - BRAND NEW
Brand new · Yale
(38)
£119.99
Free postage
Click & Collect
113 sold
Security Alarm Bell Box, External Sounder, strobe flasher, twin LED's & battery
Brand new · Kinetic
(93)
£30.99
£1.89 P&P
1,042 sold
Pyronix Enforcer Kit 3 ENF/KIT3-UK PSTN Enforcer 32-WE Wireless Alarm, S/W: V11
Brand new · Pyronix
(7)
£339.49
Free postage
Click & Collect
Yale Sync Smart Home Alarm 9 Piece Family Kit Plus IA-330 - Brand New
Brand new · Yale
(4)
£314.99
(£314.99/Unit)
Free postage
Click & Collect
130 sold
Texecom Premier Elite PSU200XP Power Supply + 8XP CCJ-0001 Rev 22 (2025 Box 10)
Brand new · Texecom
£99.47
Free postage
Kinetic AZ220WB External Sound Unit with integral strobe & sounder
Brand new · Kinetic
(93)
£31.95
Free postage
166 sold
Yale IA-320 Sync Smart Home Alarm, White Alarm - x 4 Pet Friendly Pirs + EXTRAS.
Pre-owned · Yale
(23)
£56.04
£5.21 P&P
3 bids
2d 15h
Yale Smart Alarm Hub, Home Security System with Mobile App Control, Multi-Proper
Brand new · Yale
(2)
£99.99
(£99.99/Unit)
Free postage
Click & Collect
120 sold
Texecom CCJ-0001 Premier Elite PSU200XP
Brand new · Texecom
£63.08
or Best Offer
£3.38 P&P
7 watching
Texecom Premier Elite 48 CAB-0001 Metal Case Alarm Panel
Pre-owned · Texecom
£31.88
or Best Offer
£4.06 P&P
12 watching
Scantronic / Eaton Ion10 Security Alarm Panel End Station - No Keypad - New
New (other) · Scantronic
£31.88
or Best Offer
£5.64 P&P
Scantronic ion 16 Alarm Control Panel, Keypad, PIR, Contacts, Sounder, Eaton
Pre-owned · Scantronic
(6)
£1.13
£7.19 P&P
1 bid
12h 23m
Pyronix Enforcer Kit 3 ENF/KIT3-UK PSTN Enforcer 32-WE Wireless Alarm, S/W: V11
Brand new · Pyronix
(7)
£286.68
or Best Offer
£5.88 P&P
Only 1 left.
Yale HSA Series Premium Home Alarm Kit - HSA6200 + MANY Extras
Pre-owned · Yale
(60)
£89.08
£5.21 P&P
HONEYWELL CASIL Security Alarm Battery 12v 3AH UC1230 Rechargeable Burglar Alarm
Brand new · Honeywell
(5)
£19.94
Free postage
Click & Collect
468 sold
Honeywell CASIL Security Alarm Battery 12V 2.1Ah / 2.2Ah Rechargeable Burglar
Brand new · Honeywell
(41)
£17.94
Free postage
Click & Collect
1,357 sold
Wired Intruder Burglar Alarm System PRO Kit LCD PROXIMITY Keypad PIRs 10 Zone !
Brand new
£269.99
£12.00 P&P
Click & Collect
Only 1 left.
Yale Premium Plus Alarm Kit - HSA6410
New (other) · Yale
(11)
£79.99
(£79.99/Unit)
or Best Offer
£5.64 P&P
Click & Collect
New listingERA Wireless Solar Charged Strobe Alarm Siren for Home Security.
Brand new · ERA
(2)
£51.99
Free postage
Click & Collect
Pyronix FPDELTAP3MOD Deltabell Plus G3 External Sounder Module Grade 3
Brand new · Pyronix
£34.00
(£34.00/100g)
or Best Offer
Free postage
Click & Collect
2 watching
2pc Window Door Entry Alarm Set Home Shed Security Wireless Theft Burglar New
Brand new
(25)
£4.99
Free postage
238 sold
Ring 9-Piece Wireless Home Security Alarm Kit (2nd Gen) Very Good Condition
Pre-owned · Ring
£111.07
(£111.07/Unit)
£7.27 P&P
24 bids
16h 25m
FM4040-8 ZONE Radio Receiver Panel or Add Radio detectors to wired alarm systems
Pre-owned
£44.80
or Best Offer
£3.38 P&P
ERA HomeGuard Pro Wireless Burglar Alarm System - Smart Wireless Home Alarm Kit
Brand new · ERA
(3)
£120.28
Free postage
Click & Collect
75 sold
Veritas R8 Alarm System Texecom Alarm Kit with FREE 1.2ah Backup Battery
Brand new · Texecom
£180.00
(£180.00/Unit)
Free postage
Click & Collect
NX For Honeywell Security Alarm Battery 12V 2.1Ah / 2.3Ah Rechargeable Burglar
Brand new
(4)
£11.99
Free postage
Click & Collect
195 sold
New listingRing Home Alarm FULL System Kit BOXED w/ Motion Sensors, Contact Sensors, Siren.
Pre-owned · Ring
(2)
£10.54
£5.64 P&P
5 bids
2d 11h
Ring Alarm Wireless Home Security System 5-Piece Kit, Smart Home
Brand new · Ring
(2)
£105.72
£4.26 P&P
Ring B08HGYR7JC Smart Alarm Blue
Free Delivery
Brand new · Ring
(4)
£73.00
Free postage
Est. delivery Fri, Aug 8
AJAX Hub Wireless Alarm Control Panel White 2km Range Ethernet SIM Smart Home
Brand new · Ajax
£109.99
(£109.99/Unit)
or Best Offer
£4.99 P&P
Click & Collect
New listingYale SR 320 - Smart Home Alarm + Many Extras Pir Camera - 4 Pirs + Smart Plug.
Pre-owned · Yale
£21.47
£5.21 P&P
1 bid
2d 16h
Texecom Premier Odyssey 3E - Grade 2 Alarm Bell Box - Twin LEDs
Brand new · Texecom
£38.39
Free postage
Click & Collect
Electronics Ei128RBU Hard Wired Relay Module With Battery Back Up
Brand new · Ei Electronics
£19.34
or Best Offer
£2.94 P&P
Ring Alarm 5 Piece Kit – Home Security System with optional Assisted Monitoring
Brand new · Ring
(3)
£139.99
Free postage
Click & Collect
9 watching
HONEYWELL CASIL Security Alarm Battery 12v 3AH UC1230 Rechargeable Burglar Alarm
Brand new · Honeywell
(5)
£13.99
Free postage
Click & Collect
168 sold
Ring Alarm 7-Piece Wireless Home Security Kit | 1st Gen | Boxed | Used
Pre-owned · Ring
£78.68
£4.06 P&P
0 bids
9h 37m
New listingPyronix BATT-ENF8XAA
Brand new · Pyronix
(12)
£17.19
(£17.19/Unit)
or Best Offer
£2.94 P&P
Texecom Veritas Medusa PIR 12m Range AAA-0001 Wired Motion Detector Intruder
Brand new · Texecom
(16)
£14.00
Free postage
Click & Collect
2 watching
Yucel Yuasa Y2.1-12 Sealed Lead Acid Battery 12v 2.1ah Fire Alarm Panel Back Up
Brand new · Yuasa
£15.05
(£15.05/Unit)
or Best Offer
Free postage
Click & Collect
Only 1 left.
Visonic PG2 PowerMaster 10 wireless Alarm Control PANEL 868-1 UK NEW PM10
Brand new · Visonic
£45.39
£3.38 P&P
New listing*RRP £485* SimpliSafe 7 Piece Home Security & Alarm System - BRAND NEW BOXED
Brand new · SimpliSafe
£260.67
(£260.67/Unit)
or Best Offer
£4.26 P&P
Upgraded Visonic PowerMax Express Alarm Control Panel Battery 4.8V P/N 99-301712
Brand new · Visonic
(3)
£17.95
Free postage
Click & Collect
Pyronix Deltabell Plus G2 Module External Sounder FPDELTAP2MOD
Brand new · Pyronix
(2)
£25.64
or Best Offer
Free postage
Click & Collect
Only 1 left.
Pyronix Enforcer Control Panel Alarm Battery 9.6V NiMH BAT-ENF8XAA
Brand new · Pyronix
(12)
£17.74
or Best Offer
£2.94 P&P
15 sold
Honeywell CASIL Security Alarm Battery 12V 2.1Ah / 2.2Ah Rechargeable Burglar
Brand new · Honeywell
(41)
£12.99
Free postage
Click & Collect
157 sold
Texecom Premier Elite PSU200XP Power Supply with 8XP Expander CCJ-0001
Refurbished · Texecom
£21.48
£4.06 P&P
0 bids
2d 5h
Wireless Security WiFi GSM Smart Home Security Intruder Burglar Alarm System
Brand new
£63.08
(£63.08/Unit)
or Best Offer
£3.71 P&P
4G Tuya WiFi GSM GPRS 4.3" Wireless Alarm System, Home Burglar Alarm.
Brand new · Unbranded
£75.00
Free postage
Click & Collect
52 watching
3 x Deta 1171 Combined Optical Smoke & Heat Alarm Mains Lithium Battery Back Up
Brand new
£59.99
Free postage
Click & Collect
Only 1 left.
6 Piece Ring Security Alarm And Indoor Camera
Pre-owned · Ring
£83.88
£3.71 P&P
0 bids
4d 11h
Security Master - TP-800 - Professional 8 Zone Pre Wired Alarm System - Unused
New (other) · Master
£79.99
or Best Offer
£9.95 P&P
Click & Collect
ERA Wireless Solar Charged Strobe Alarm Siren for Home Security
Brand new · ERA
(2)
£52.68
£2.94 P&P
Z47 Tuya APP WiFi+4G Sim Card Wireless Home Security Alarm Burglar System+RFID
Brand new
£165.99
or Best Offer
Free postage
Only 1 left.
Solar Wireless GSM WiFi Smart Home Burglar Security Alarm System Touch Screen
Brand new · Unbranded
£39.99 to £148.99
Free postage
Click & Collect

Best selling

See all

Yale HSA Series Premium Home Alarm Kit (B-HSA6410)
(11)
£144.97 New
£31.97 Used
Link2Home L2H-SECUREKIT Smart Alarm Kit LTHSECKIT
(5)
£306.12 New
Honeywell Alarm Battery 12V 2.1Ah (UC1221)
(40)
£11.99 New
Pyronix Enforcer Kit 3 Wireless Security Alarm System - ENFKIT3UK
(7)
£275.00 New
Yale YES-ALARMKIT Essentials Alarm Kit
(38)
£119.99 New
Kinetic Defender AZ-220WB Security Alarm - Blue
(93)
£31.95 New
£24.99 Used
2x Door & Window Entry Alarm 2pc Set Home Shed Security Battery Operated Wireles
(25)
£4.90 New
Ring 12pc Alarm Starter Kit Including Outdoor Siren with Indoor Camera
(2)
£350.00 New

Top-rated

See all

Kinetic Defender AZ-220WB Security Alarm - Blue
(93)

98% agree - Would recommend
£31.95 New
£24.99 Used
Honeywell Alarm Battery 12V 2.1Ah (UC1221)
(40)

100% agree - Would recommend
£11.99 New
4texecom Reflex PIR Detectors Motion Sensor Burglar Alarm Movement Veritas Pir7
(16)

100% agree - Would recommend
£14.00 New
Pyronix Enforcer Kit 3 Wireless Security Alarm System - ENFKIT3UK
(7)

100% agree - Would recommend
£275.00 New
Yale YES-ALARMKIT Essentials Alarm Kit
(38)

94% agree - Would recommend
£119.99 New
2x Door & Window Entry Alarm 2pc Set Home Shed Security Battery Operated Wireles
(25)

94% agree - Would recommend
£4.90 New
Pyronix NiMH DC Power Connector - BATTENF8XAA
(12)

100% agree - Would recommend
£14.99 New
Yale HSA Series Premium Home Alarm Kit (B-HSA6410)
(11)

100% agree - Would recommend
£144.97 New
£31.97 Used

Battery Backup Home Alarm Systems

Shop by category

731 results

Yale HSA Series Premium Plus Alarm Kit

Yale Smart Hub Alarm Back Up Battery SR-HUB SYNC IA 310 320 330 340 802306043H2

Response Alarm Battery HW10 WP1 6v 1.2Ah GENUINE Response Battery KIT / SA Range

A1 Security Alarms AJ400 Burglar Alarm System Boxed Vintage

Honeywell CASIL Security Alarm Battery 12V 2.1Ah / 2.3Ah Rechargeable Burglar

YUASA For Honeywell Security Alarm Battery 12V 2.1Ah /2.3Ah Rechargeable Burglar

Yale HSA Essentials 5 Piece White Wireless Alarm Kit - YES-ALARMKIT - BRAND NEW

Security Alarm Bell Box, External Sounder, strobe flasher, twin LED's & battery

Pyronix Enforcer Kit 3 ENF/KIT3-UK PSTN Enforcer 32-WE Wireless Alarm, S/W: V11

Yale Sync Smart Home Alarm 9 Piece Family Kit Plus IA-330 - Brand New

Texecom Premier Elite PSU200XP Power Supply + 8XP CCJ-0001 Rev 22 (2025 Box 10)

Kinetic AZ220WB External Sound Unit with integral strobe & sounder

Yale IA-320 Sync Smart Home Alarm, White Alarm - x 4 Pet Friendly Pirs + EXTRAS.

Yale Smart Alarm Hub, Home Security System with Mobile App Control, Multi-Proper

Texecom CCJ-0001 Premier Elite PSU200XP

Texecom Premier Elite 48 CAB-0001 Metal Case Alarm Panel

Scantronic / Eaton Ion10 Security Alarm Panel End Station - No Keypad - New

Scantronic ion 16 Alarm Control Panel, Keypad, PIR, Contacts, Sounder, Eaton

Pyronix Enforcer Kit 3 ENF/KIT3-UK PSTN Enforcer 32-WE Wireless Alarm, S/W: V11

Yale HSA Series Premium Home Alarm Kit - HSA6200 + MANY Extras

HONEYWELL CASIL Security Alarm Battery 12v 3AH UC1230 Rechargeable Burglar Alarm

Honeywell CASIL Security Alarm Battery 12V 2.1Ah / 2.2Ah Rechargeable Burglar

Wired Intruder Burglar Alarm System PRO Kit LCD PROXIMITY Keypad PIRs 10 Zone !

Yale Premium Plus Alarm Kit - HSA6410

New listingERA Wireless Solar Charged Strobe Alarm Siren for Home Security.

Pyronix FPDELTAP3MOD Deltabell Plus G3 External Sounder Module Grade 3

2pc Window Door Entry Alarm Set Home Shed Security Wireless Theft Burglar New

Ring 9-Piece Wireless Home Security Alarm Kit (2nd Gen) Very Good Condition

FM4040-8 ZONE Radio Receiver Panel or Add Radio detectors to wired alarm systems

ERA HomeGuard Pro Wireless Burglar Alarm System - Smart Wireless Home Alarm Kit

Veritas R8 Alarm System Texecom Alarm Kit with FREE 1.2ah Backup Battery

NX For Honeywell Security Alarm Battery 12V 2.1Ah / 2.3Ah Rechargeable Burglar

New listingRing Home Alarm FULL System Kit BOXED w/ Motion Sensors, Contact Sensors, Siren.

Ring Alarm Wireless Home Security System 5-Piece Kit, Smart Home

Ring B08HGYR7JC Smart Alarm Blue

AJAX Hub Wireless Alarm Control Panel White 2km Range Ethernet SIM Smart Home

New listingYale SR 320 - Smart Home Alarm + Many Extras Pir Camera - 4 Pirs + Smart Plug.

Texecom Premier Odyssey 3E - Grade 2 Alarm Bell Box - Twin LEDs

Electronics Ei128RBU Hard Wired Relay Module With Battery Back Up

Ring Alarm 5 Piece Kit – Home Security System with optional Assisted Monitoring

HONEYWELL CASIL Security Alarm Battery 12v 3AH UC1230 Rechargeable Burglar Alarm

Ring Alarm 7-Piece Wireless Home Security Kit | 1st Gen | Boxed | Used

New listingPyronix BATT-ENF8XAA

Texecom Veritas Medusa PIR 12m Range AAA-0001 Wired Motion Detector Intruder

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

Visonic PG2 PowerMaster 10 wireless Alarm Control PANEL 868-1 UK NEW PM10

New listing*RRP £485* SimpliSafe 7 Piece Home Security & Alarm System - BRAND NEW BOXED

Upgraded Visonic PowerMax Express Alarm Control Panel Battery 4.8V P/N 99-301712

Pyronix Deltabell Plus G2 Module External Sounder FPDELTAP2MOD

Pyronix Enforcer Control Panel Alarm Battery 9.6V NiMH BAT-ENF8XAA

Honeywell CASIL Security Alarm Battery 12V 2.1Ah / 2.2Ah Rechargeable Burglar

Texecom Premier Elite PSU200XP Power Supply with 8XP Expander CCJ-0001

Wireless Security WiFi GSM Smart Home Security Intruder Burglar Alarm System

4G Tuya WiFi GSM GPRS 4.3" Wireless Alarm System, Home Burglar Alarm.

3 x Deta 1171 Combined Optical Smoke & Heat Alarm Mains Lithium Battery Back Up

6 Piece Ring Security Alarm And Indoor Camera

Security Master - TP-800 - Professional 8 Zone Pre Wired Alarm System - Unused

ERA Wireless Solar Charged Strobe Alarm Siren for Home Security

Z47 Tuya APP WiFi+4G Sim Card Wireless Home Security Alarm Burglar System+RFID

Solar Wireless GSM WiFi Smart Home Burglar Security Alarm System Touch Screen

Best selling

Yale HSA Series Premium Home Alarm Kit (B-HSA6410)

Link2Home L2H-SECUREKIT Smart Alarm Kit LTHSECKIT

Honeywell Alarm Battery 12V 2.1Ah (UC1221)

Pyronix Enforcer Kit 3 Wireless Security Alarm System - ENFKIT3UK

Yale YES-ALARMKIT Essentials Alarm Kit

Kinetic Defender AZ-220WB Security Alarm - Blue

2x Door & Window Entry Alarm 2pc Set Home Shed Security Battery Operated Wireles

Ring 12pc Alarm Starter Kit Including Outdoor Siren with Indoor Camera

Top-rated

Kinetic Defender AZ-220WB Security Alarm - Blue

Honeywell Alarm Battery 12V 2.1Ah (UC1221)

4texecom Reflex PIR Detectors Motion Sensor Burglar Alarm Movement Veritas Pir7

Pyronix Enforcer Kit 3 Wireless Security Alarm System - ENFKIT3UK

Yale YES-ALARMKIT Essentials Alarm Kit

2x Door & Window Entry Alarm 2pc Set Home Shed Security Battery Operated Wireles

Pyronix NiMH DC Power Connector - BATTENF8XAA

New listingRRP £485 SimpliSafe 7 Piece Home Security & Alarm System - BRAND NEW BOXED