Why you should be using rechargeable batteries
Rechargeable batteries can be used over and over again – in fact, in our testing, we put our rechargeables under high-drain conditions to see just how long they’ll last before...
The batteries you need this Christmas
Our latest tests reveal which are the best AA and AAA batteries to buy this Christmas, from powering your kids' toys to fairy lights and remote controls.
Best bargain rechargeable batteries
Which? uncovers six new Best Buys in our latest test of AA and AAA rechargeable batteries, but we also found the worst battery we’ve seen in years.
Best batteries for Christmas
Which? reveals how to spot a bargain on batteries for Christmas from more than 50 battery types tested in 2017.
Which? reveals the best vs worst AA disposable batteries
We compare the best and worst AA disposable batteries to identify which type works best for a range of devices.