Batteries advice guides

Which batteries last the longest? And how much do you need to spend to get the best batteries? Our guides reveal what you need to know about disposable batteries.

How to buy the best batteries
by Hollie Hennessy
Whether you're looking for AA or AAA, alkaline or litium, follow Which? expert advice to help you buy the best batteries. Tested brands include Duracell, Energizer, Lidl, and Panasonic. Find out which brand lasts the longest.
Best AA batteries
by Hollie Hennessy
Find out which AA batteries scored best and worst in our lab tests, which included big brands Duracell and Energizer as well as supermarket own-brand batteries. Use our test results to make sure you only buy the best AA batteries.
Best AAA batteries
by Hollie Hennessy
Want to know which are the best AAA batteries? With our latest AAA battery results, which includes Duracell, Energizer and supermarket own-brands, Which? can reveal the best AAA disposable batteries. So you can avoid the worst.

Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

How we test batteries
Which? independent lab tests reveal the best batteries for your devices. We've tested batteries from Duracell and Energizer, checking value for money, how long the battery lasts and how likely it is to leak and damage your device

Batteries advice guides

How to buy the best batteries

Best AA batteries

Best AAA batteries

Put us to the test

How we test batteries