Batteries UK | AA, AAA, 9V & CR2032

Q: What is the difference between AA and AAA batteries?

AA batteries are bigger than AAA batteries. They aren't interchangeable, so check the size shown on your device or the battery you're replacing.

Q: What is a CR2032 battery?

It's a small, round 3V lithium coin battery used in some key fobs, remotes and other devices. Check the exact CR2032 code before buying.

Q: Can I use a CR2025 instead of a CR2032 battery?

Not automatically. They may look alike, but CR2025 and CR2032 are different thicknesses. Use the exact battery code your device specifies.

Q: Do I need the same battery voltage and type?

Yes. Check the voltage, battery code and type in your device instructions. Two batteries of the same shape aren't necessarily safe or suitable replacements.

Q: Where can I recycle used batteries?

Take them to a battery collection point, often found in supermarkets and larger shops. Keep used coin batteries away from children while you're waiting to recycle them.

Q: What should I do if a child swallows a coin battery?

Call 999 or go straight to A&E. Don't wait for symptoms, give them food or drink, or try to make them sick. Take the battery packaging if you can, without delaying help.

How Do I Choose the Right Battery Size?

Start with the code printed on the battery you're replacing or in your device's instructions. The size, voltage and battery type all need to match; a similar-looking battery isn't necessarily suitable.

AA and AAA are common household sizes, but they aren't interchangeable. C and D batteries are larger, while a 9V battery is usually rectangular. Coin batteries need a more exact match: CR2032 is a 3V lithium cell, and a CR2025 is thinner, so it isn't automatically a suitable substitute.

You'll find Duracell, Energizer and Eveready batteries here. Once you know the right size, compare the battery type and pack quantity. Alkaline, zinc and lithium are different chemistries, and the suitable choice depends on your device.

Coin batteries need extra care. Store new and used CR2032 cells securely away from children and never leave a loose battery within reach. If you suspect a child has swallowed one, go straight to A&E or call 999.

Used batteries belong at a collection point rather than in household rubbish. If what you need is portable charging for a phone rather than replacement cells, see Power Banks.

Frequently Asked Questions

What is the difference between AA and AAA batteries?

What is a CR2032 battery?

Can I use a CR2025 instead of a CR2032 battery?

Do I need the same battery voltage and type?

Where can I recycle used batteries?

What should I do if a child swallows a coin battery?

Account

Orders

Food & Drink

Shop by type

Shop by country

Discover

Vietnamese Favourites

Vaping & Nicotine

Shop by type

Shop by brand

Discover & multi-buys

Kits, E-Liquids, Pods & More

Tech & Mobile

Mobile & connectivity

Power & computing

Featured brands

Refurbished Phones

Food & Drink

Shop by type

Shop by country

Discover

Vaping & Nicotine

Shop by type

Shop by brand

Discover & multi-buys

Tech & Mobile

Mobile & connectivity

Power & computing

Featured brands

Account

Orders

Batteries

Sort by

Brand

Availability

Battery Size

Color

Pack Size

Price Range

CR2032 Lithium Battery

Duracell Plus Power Batteries

Energizer Alkaline Power Batteries

Energizer Primary Alkaline Batteries

Eveready Alkaline Gold Batteries

Eveready SHD Batteries

Eveready Zinc Batteries

How Do I Choose the Right Battery Size?

Frequently Asked Questions

You're all set!