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Nest Protect Battery Comparison - April 2026

7 Best Nest Protect Battery In the UK

1
Best Choice
9.7Exceptional
2
9.4Excellent
3
Best Value
9.3Excellent
4
9.2Excellent
5
8.9Very Good
6
8.7Very Good
7
8.6Very Good
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Model

CPVAN Wireless Interlinked Smoke, Heat & Carbon Monoxide Alarm Bundle, Scotland & England Law Compliant | 10-year Battery Life, Pre-Linked Fire Detectors for Home,6 Pack + 2 Remote(2nd Generation)
Model
X-Sense Combination Smoke and Carbon Monoxide Alarm with LCD Display & 10-Year Battery, Smoke Alarm for Home Compliant with EN 14604 and EN 50291 Standards, SC07
Model
X-Sense Wi-Fi Combination Smoke Alarm and Carbon Monoxide Alarm with Replaceable Battery, Smart Fire Alarm Compatible with X-Sense Home Security App, SC07-WX, 1-Pack
Model
X-Sense Combination Smoke and Carbon Monoxide Alarm with English Voice Alerts, Smoke Alarm for Home with Replaceable Battery, XP0A-SR, 2-Pack
Model
X-Sense Wi-Fi Combination Smoke and Carbon Monoxide Alarm for Home with English Voice Alerts, Wireless Interlinked Voice Alarm with SBS50 Base Station, XP0A-MR11
Model
X-Sense Wi-Fi Combination Smoke and Carbon Monoxide Alarm with English Voice Alerts, Smart Smoke Alarm for Home with Replaceable Battery, XP0A-iR, 1-Pack
Model
Meross Carbon Monoxide Detector, Dual Sensor Smoke and Carbon Monoxide alarm, Smoke Alarm for home with Test/Silence Button, 10-Year Battery Smoke Alarm, 85dB Fire Alarm, EN 14604 & EN 50291 Standard

Brand

CPVAN
Brand
X-Sense
Brand
X-Sense
Brand
X-Sense
Brand
X-Sense
Brand
X-Sense
Brand
meross

Reviews

866 reviews
Reviews
10,364 reviews
Reviews
7,258 reviews
Reviews
682 reviews
Reviews
214 reviews
Reviews
682 reviews
Reviews
2,292 reviews

Tech Specs

batteries

‎1 Lithium Metal batteries required. (included)
batteries
‎2 CR123A batteries required. (included)
batteries
1 CR123A batteries required. included
batteries
‎2 CR123A batteries required. (included)
batteries
‎1 CR123A batteries required. (included)
batteries
‎1 CR123A batteries required. (included)
batteries
1 CR123A batteries required. included

item weight

‎1.19 kg
item weight
‎320 g
item weight
400 g
item weight
‎263 g
item weight
‎263 g
item weight
‎263 g
item weight
135 g

batteries included

‎Yes
batteries included
‎Yes
batteries included
Yes
batteries included
‎Yes
batteries included
‎Yes
batteries included
‎Yes
batteries included
Yes

size

‎4*Smoke+1*Heat Alarm+1*CO Alarm+2*RC
size
‎Standalone Model
size
Wi-Fi Connected Model
size
‎2-PACK
size
‎1 Combination Alarm & 1 Base Station
size
‎1-PACK
size
1 Pack

power source

‎Battery Powered
power source
‎Battery Powered
power source
Battery Powered
power source
‎Battery Powered
power source
‎Battery Powered
power source
‎Battery Powered
power source
Battery Powered

style

‎Interliked bundle
style
‎Standalone Model
style
Classic
style
‎Standalone Model
style
‎2.4 GHz Wi-Fi Connection via Base Station
style
‎Wi-Fi Connected Model
style
Smoke & CO Detector

battery cell type

‎Lithium Metal
battery cell type
‎Lithium
battery cell type
Lithium
battery cell type
‎Lithium
battery cell type
‎Lithium
battery cell type
‎Lithium Metal
battery cell type
Lithium Ion

batteries required

‎Yes
batteries required
‎Yes
batteries required
Yes
batteries required
‎Yes
batteries required
‎No
batteries required
‎Yes
batteries required
Yes

included components

‎1*User Manual, 1*co alarm, 1*heat alarm, 2*remote control, 4*smoke alarm
included components
‎1 × Smoke and Carbon Monoxide Alarms, 1 × Mounting Brackets, 2 × Screws, 2 × Anchor Plugs, 1 × User Manual
included components
1 Wi-Fi Smoke and Carbon Monoxide Alarm SC07-WX, 1 CR123A Battery , 1 Mounting Bracket, 2 Screws, 2 Anchor Plugs, 1 User Manual
included components
‎2 × Combination Smoke and Carbon Monoxide Alarms with Voice Alerts XP0A-SR, 2 × Mounting Brackets, 4 × Screws, 4 × Anchor Plugs, 1 × User Manual
included components
‎1 × Smoke and Carbon Monoxide Alarm with Voice Alerts XP0A-MR, 1 × SBS50 Base Station, 1 × Mounting Bracket, 2 × Screws, 2 × Anchor Plugs, 1 × Power Adapter, 1 × Power Cable, 1 × User Manual
included components
-
included components
1 x Combination Smoke and Carbon Monoxide Detectors 1 x Mounting Bracket 1 x Screw Kit 1 x User Manual

product dimensions

-
product dimensions
‎14.6 x 14.6 x 5.1 cm; 320 g
product dimensions
14.6 x 14.6 x 5 cm 400 g
product dimensions
‎13.5 x 13.5 x 3 cm; 263 g
product dimensions
‎13.5 x 3 x 13.5 cm; 263 g
product dimensions
‎13.5 x 13.5 x 3 cm; 263 g
product dimensions
2.8 x 12 x 12 cm 135 g

color

‎4smoke+1heat+1co+1remote
color
‎1-pack
color
1-pack
color
-
color
-
color
-
color
White

item package quantity

-
item package quantity
‎1
item package quantity
-
item package quantity
-
item package quantity
‎1
item package quantity
-
item package quantity
1

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    CPVAN
    15% Off

    CPVAN Wireless Interlinked Smoke, Heat & Carbon Monoxide Alarm Bundle, Scotland & England Law Compliant | 10-year Battery Life, Pre-Linked Fire Detectors for Home,6 Pack + 2 Remote(2nd Generation)

    Why we love it

    10-year battery life.
    Easy installation process.
    Meets safety regulations.
    Main highlights
    • 【Updated Version】 Since the enactment of legislation in New Scotland and New England in 2022, we have sold many SM11R sets for the interlinked smoke and heat alarm scotland bundle. Taking the feedback from our first generation customers into account, we have developed a second generation product that solves the problems encountered with the first generation. Note: THIS SET IS NOT COMPATIBLE WITH THE SM11R.
    • 【Expand Your System】Mandatory Safety for Homes & Rentals, all homes (owner-occupied & rentals) to have an fire and smoke alarm system with adequate carbon monoxide protection. The bundle has been ‘Pre-Linked' & ready-simply power on, test, and install! Easily expand your system by adding up to 30 compatible alarms (e.g., CP-SD01(FSI-3001), FSI-3002, FSI-3003) and 10+ FSI-RC remote controls (for ground-level testing/silencing/pairing). Achieve full-coverage, regulation-compliant protection effortlessly.
    • 【Easy to use and install】Messages from men and women in their 80s that our only take 3 minutes to install, and they don't need to hire an electrician and redecorate. Self-installed alarms make your life more convenient. Just switch on, and test the pre-linked bundle with the remote. Then using screws and anchors or strong magnetic pads to mount the fire/heat alarms on wall or ceiling. You can use the carbon monoxide alarm directly without mounting. The packed remote control delivers more convenience for mute,test and pair.
    • 【Critical Early Warning & Prevent Tragedy】 Over 10,000 fires yearly stem from faulty/missing detectors! Outdated alarms miss crucial early signs, reducing escape time. Our continuously updated 2nd Gen system (SD01) offers superior sensitivity and reliability for the earliest possible fire & CO leak detection. New laws hold landlords accountable; don't gamble with safety. Upgrade NOW to a 10-year, wireless interlinked system – protect what matters most!
    • 【Compliant with New Scottish & English Regs】Totally compliant with Both The New Scotland Regs (Feb 2022) and The New England Regs (Oct 2022). 1 in 3 UK homes lack working smoke alarms! Our smoke, heat and CO kits are certified to BS EN14604:2005/AC:2008, BS 5446-2:2003 & EN 50291-1:2018 standards. Ensure your home or rental property is fully legal, avoids penalties, and provides top-tier protection against fire and carbon monoxide risks. Peace of mind guaranteed.
    • 【10-year Protection】 All our interlinked smoke, heat and carbon monoxide alarms have a built-in & tamper proof 10 Year Lithium battery. This spares you the hassle of frequent battery changes whilst giving you peace of mind that your home is protected 24/7, even during power outage.All alarms are wirelessly interconnected. If one alarm sounds, all alarms will sound together, ensuring comprehensive protection for your home. 2nd Generation technology delivers reliable, long-term safety for every UK homeowner and tenant.
  • 9.4
    2
    X-Sense

    X-Sense Combination Smoke and Carbon Monoxide Alarm with LCD Display & 10-Year Battery, Smoke Alarm for Home Compliant with EN 14604 and EN 50291 Standards, SC07

    Why we love it

    10-year battery for continuous protection.
    Dual sensors for smoke and CO detection.
    Real-time CO levels on LCD display.
    Main highlights
    • Large LCD Display: Clearly displays battery level and the real-time CO levels in PPM (parts per million) taken from the surrounding air, with an updated measurement taken every 10 seconds, ensuring you are always aware of the status of your carbon monoxide and smoke detector
    • LED Indicator: Clearly informs you of the working status of the smoke alarm with its 3-color flashing LED indicator (green LED indicates normal operation, red LED indicates the alarm status, and yellow LED indicates a fault), ensuring the safety and security of your home 24/7
    • Built-In 10-Year Battery: Provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; this smoke alarm and carbon monoxide alarm saves you from constantly having to change batteries or wonder if your alarm is still functioning
    • Attention: The SC07 Combination Smoke and Carbon Monoxide Alarm is not compatible with the SBS50 Base Station and does not support interconnectivity or any APP functionality
    • Accurate, Reliable & Highly Sensitive: The X-Sense combination smoke and CO alarm has been redesigned from the inside out; it will ensure that smoke triggers the alarm instead of interference by taking 3 separate smoke samples from the surrounding air; a full 360 ° ring of air intakes ensures complete detection with no blind spots
    • 2-In-1 Protection: Equipped with both photoelectric smoke sensor and electrochemical CO sensors that work independently of each other, this smoke alarm and carbon monoxide detector instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit
  • 9.3
    3
    X-Sense
    17% Off

    X-Sense Wi-Fi Combination Smoke Alarm and Carbon Monoxide Alarm with Replaceable Battery, Smart Fire Alarm Compatible with X-Sense Home Security App, SC07-WX, 1-Pack

    Why we love it

    Fast and accurate detection.
    Monitor safety from anywhere.
    Share alerts with family easily.
    Main highlights
    • Stay in the Know with Instant Alerts: Keep an eye on your home from anywhere and get immediate push notifications through the X-Sense Home Security app for alarms, low battery, faults, and more
    • Direct 2.4 GHz Wi-Fi Connection: The battery-powered smoke and carbon monoxide alarm connects directly to the X-Sense Home Security app via the 2.4 GHz Wi-Fi network, no base station required
    • Device Sharing: With the X-Sense Home Security app, you can effortlessly share your devices with 12 family and friends, enabling them to monitor your home safety and receive crucial alerts
    • Decade-Long Safety with Precision Detection: This smoke and carbon monoxide alarm combines photoelectric smoke and Figaro electrochemical CO sensors, ensuring fast and accurate detection and a 10-year lifespan, giving you the utmost safety and peace of mind
    • CO Detection History at Your Fingertips: Access your home's CO concentration history from anywhere using the app; stay informed about your home's safety with comprehensive CO detection data
    • CO Alarm Precaution: You’ll receive an immediate warning on the app when the CO level exceeds 100 ppm from your carbon monoxide and smoke detector, enabling you to respond promptly without waiting for a delayed response
    • Attention: The SC07-WX Wi-Fi Smoke and Carbon Monoxide Alarm is not compatible with SBS50 base station and does not support interconnect function

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