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...
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.
Which? reveals how to spot a bargain on batteries for Christmas from more than 50 battery types tested in 2017.
We compare the best and worst AA disposable batteries to identify which type works best for a range of devices.