Defibrillator Batteries

Defibrillator batteries are a critical part of ensuring that your Automated External Defibrillator (AED) is always ready to respond in a sudden cardiac emergency. These specialised batteries power your device in standby mode and during use, and must be replaced at regular intervals to maintain full operational readiness. Whether you’re buying defibrillator batteries for workplace, community or home use, selecting the correct battery replacement for your AED model is essential for reliable performance when it matters most.

Read more about defibrillator batteries

Why Defibrillator Battery Replacement Matters

Every AED battery has a defined standby life, typically ranging from around four to five years once installed, depending on the manufacturer and model. If a battery is allowed to expire or depleted, your defibrillator may not be able to deliver a life-saving shock when needed — so timely defibrillator battery replacement is a crucial part of AED maintenance.

In many devices, the AED monitors battery status and alerts you when the battery needs attention, but it’s good practice to track replacement dates and keep spare batteries on hand.

Choose the Right Battery for Your AED

Defibrillator batteries are not universal — each AED model requires a specific battery type. Our range includes manufacturer-approved battery replacements for popular AED brands such as Philips HeartStart, Zoll AED, Defibtech, Schiller and Mediana, with products offering multi-year standby life and capacities rated for hundreds of shocks.

Whether you need a standard lithium pack for your Philips HeartStart HS1, a high-capacity battery for a Defibtech model, or a long-life pack for Zoll AEDs, you’ll find the correct replacement right here. Batteries are non-rechargeable lithium units designed for long shelf life and dependable performance.

Accessories and Maintenance Support

Alongside defibrillator batteries, we also offer related accessories and reminders to help keep your AED in peak condition. Use our reminder service to get notified when your battery is approaching its replacement window, so you never miss a scheduled change.

Browse our comprehensive selection of defibrillator batteries and AED battery replacement packs to fit your device and maintain readiness for any emergency.

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angled view of an ipad sp1 defibrillator battery pack showing labels and safety symbols

iPAD SP1 Defibrillator Battery Pack

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With an impressive 5 year stand-by lifespan when installed, this lithium battery is designed for use with the iPAD SP1 fully and semi-automatic defibrillators.

  • Designed for the iPAD SP1 fully and semi-automatic defibrillators
  • Battery stand-by life: up to 60 months (4 year warranty from activation)
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£281.51 inc VAT

£259.91 inc VAT

£216.59 ex VAT

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Group of Duracell Ultra batteries shown with zoll aed plus battery pack product context

Zoll AED Plus Battery Pack

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Used with the Zoll AED plus semi and fully automatic defibrillators, this pack of 10 non-rechargeable lithium batteries will provide power in stand-by for up to 5 years.

  • Designed for use with the Zoll AED Plus Defibrillator
  • Lifespan of up to 60 months
5 out of 5 stars
£71.99 inc VAT

£45.59 inc VAT

£37.99 ex VAT

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a grey rectangular plastic battery with white writing stating zoll aed 3 battery pack and showing the ce mark, serial numbers, manufacture date and address and safe disposal icon

Zoll AED 3 Defibrillator Battery Pack

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Equipped with a 5 year stand-by life when installed, this disposable replacement lithium battery is designed for use with Zoll AED 3 defibrillators.

  • Provides power to the Zoll AED 3 defibrillators
  • Stand-by life: 60 months (after installation)
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£150.00 inc VAT

£125.00 ex VAT

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a front shot of a blue lithium battery with a white label showing the install before date

Philips HeartStart HS1 & FRx Defibrillator Lithium Battery

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Keep your Philips HeartStart defibrillators available at all times with this non-rechargeable lithium battery. Suitable as a replacement or a spare, this battery has a capacity of up to 200 shocks.

  • Designed for the Philips HeartStart HS1 and FRx defibrillators
  • Battery stand-by life: 48 months
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£169.99 inc VAT

£141.66 ex VAT

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A black replacement defibrillator battery

Vivest X1 & X3 Replacement Battery

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Keep your Vivest PowerBeat defibrillator rescue ready at all times with this non-rechargeable lithium battery. Suitable as a replacement or a spare, this battery has a capacity of up to 200 shocks.

  • Designed for the Vivest PowerBeat X1 and X3 defibrillators
  • Battery stand-by life: 60 months
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£180.00 inc VAT

£150.00 ex VAT

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A red and black battery for the Median defibrillator

Mediana HeartOn A15 Defibrillator Battery

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Designed for use with the Mediana HeartOn A15 defibrillator, this non-rechargeable long life battery is provides 4 years stand-by life or a minimum of 200 shocks.

  • Suitable for the Mediana HeartOn A15 Defibrillator
  • 48 month stand-by life from date of manufacture
5 out of 5 stars

£212.03 inc VAT

£176.69 ex VAT

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Angled view of mediana hearton a16 defibrillator battery pack in bright orange with visible label and connector pins

Mediana HeartOn A16 Defibrillator Battery Pack

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Designed for use with the Mediana HeartOn A16 defibrillator, this replacement lithium battery pack provides a minimum of 200 shocks, or 6 hours of continous monitoring.

  • Suitable for the Mediana HeartOn A16 defibrillators
  • 60 month stand-by life from date of manufacture (when installed)
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£235.43 inc VAT

£196.19 ex VAT

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A white replacement defibrillator battery with a green label

IPAD NFK200 Replacement Battery

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Designed for use for the IPAD NFK200 defibrillator, this non-rechargeable lithium battery provides up to 200 shocks and has a long shelf life of 5 years (from date of manufacture).

  • For use with the IPAD NFK200 semi-automatic defibrillator
  • Up to 60 month stand-by life from date of manufacture
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£262.91 inc VAT

£219.09 ex VAT

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semi automatic defibrillator showing front side of a detachable disposable battery pack with labels and symbols

IPAD SPR Replacement Battery

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The IPAD SPR non‑rechargeable replacement lithium battery provides up to 200 shocks (150 joules) or 8 hours of continuous use and offers a 5‑year shelf life from its manufacture date.

  • Suitable for the Semi-Automatic IPAD SPR defibrillator
  • Battery stand-by life: up to 60 months
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£255.50 inc VAT

£212.92 ex VAT

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angled view of the defibtech lifeline aed auto standard battery showing connectors and label on a yellow casing

Defibtech Lifeline AED & Lifeline Auto Standard Battery Pack

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This replacement battery pack for Defibtech Lifeline AED and Lifeline Auto defibrillators has a capacity of up to 125 shocks or 8 hours of continuous operation, and has a standby life of up to 5 years.

  • Designed for the Defibtech Lifeline AED and Lifeline Auto defibrillators
  • Up to 60 months stand-by life
4.7 out of 5 stars

£288.00 inc VAT

£240.00 ex VAT

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angled view of the defibtech lifeline aed auto high capacity battery showing its yellow casing and label

Defibtech Lifeline AED & Auto High Capacity Battery Pack

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This high capacity battery pack, for use with Defibtech Lifeline AED & Lifeline Auto defibrillator, has been designed for high use operation with a capacity of up to 300 shocks or 16 hours of continuous operation.

  • Suitable for the Defibtech Lifeline AED and Auto defibrillators
  • Stand-by life: Up to 84 months
5 out of 5 stars

£349.99 inc VAT

£291.66 ex VAT

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a yellow rectangular battery with black writing stating Defibtech as the brand, there are serial number and expiry date barcodes show in black and white

Defibtech Lifeline View, ECG & Pro 4 Year Battery Pack

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Designed to power the Defibtech Lifeline View, ECG and Pro defibrillators, this replacement battery pack has a 4 year stand-by life when installed. During use it has a capacity of up to 125 shocks or 8 hours continuous use.

  • For the Defibtech Lifeline View, ECG and Pro defibrillators
  • 48 month stand-by life
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£319.99 inc VAT

£266.66 ex VAT

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Front view of a yellow cardiac science powerheart g3 plus intellisense battery with label and connectors visible

Cardiac Science Powerheart G3 & G3 Plus Intellisense Non-Rechargeable Lithium Battery

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The IntelliSense lithium battery has a four year operational replacement guarantee and is designed for use with the Powerheart AED G3 and G3 Plus defibrillators.

  • For use with the Powerheart AED G3 & G3 Plus defibrillators
  • Battery stand-by life: 48 months'
4.4 out of 5 stars

£345.00 inc VAT

£287.50 ex VAT

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Angled view of the cardiac science powerheart g5 4 year battery back showing label and connector port

Cardiac Science Powerheart G5 Replacement Battery

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This replacement battery powers the Cardiac Science Powerheart G5 defibrillators and is capable of delivering up to 500 shocks during its 4 year lifespan.

  • For use with the Cardiac Science Powerheart G5 defibrillator
  • Battery stand-by life: 48 months
5 out of 5 stars

£340.00 inc VAT

£283.33 ex VAT

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defisign life defibrillator battery pack showing front with label and connector pins on white background

DefiSign Life Defibrillator Battery Pack

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Designed for use with DefiSine Life defibrillators, this replacement battery pack provides more than 140 shocks at max capacity and ensures your device is rescue ready.

  • Suitable for the Defisign Life defibrillator
  • Stand-by life: 72 months
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£229.07 inc VAT

£190.89 ex VAT

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Front view of the philips heartstart fr3 battery showing labels and safety symbols

Philips HeartStart FR3 Defibrillator Battery

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This replacement battery for the Philips HeartStart FR3 defibrillator has impressive shelf and stand-by lives, and is quick and simple to install.

  • For use with Philips HeartStart FR3 defibrillators
  • 60 months' shelf life and 36 months' stand-by life
5 out of 5 stars

£295.00 inc VAT

£245.83 ex VAT

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Physio control lifepak cr2 replacement battery at an angle showing the manufacturer label

Physio-Control Lifepak CR2 Defibrillator Battery

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This replacement battery for the Lifepak CR2 defibrillators is capable of delivering at least of 103 shocks at 360 joules.

  • For use with the Physio-Control Lifepak CR2 defibrillators
  • 48 month battery stand-by life
5 out of 5 stars

£250.00 inc VAT

£208.33 ex VAT

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physio control lifepak 1000 non rechargeable lithium battery kit showing battery unit, instruction manual, and yellow plastic holder

Physio-Control Lifepak 1000 Non-Rechargeable Lithium Battery Kit

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This battery for the Physio-Control Lifepak 1000 defibrillators comes with a discharger for your old battery to ensure it can be disposed of safely.

  • Designed for use with the Lifepak 1000 automated external defibrillators
  • 60 month battery standby life
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£298.80 inc VAT

£249.00 ex VAT

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