The Ultimate Lithium AA batteries now last up to nine times longer in digital cameras (compared with Energizer Max batteries), while Ultimate Lithium AAA batteries also last up to nine times ...

You may have heard people say that lithium batteries are better than alkaline, but do you know what the actual differences ...

We've tested and reviewed products since 1936. Read CR's review of the Energizer Advanced Lithium AA battery to find out if it's worth it.

The test comprised depleting Energizer Ultimate lithium and Energizer Max alkaline AA batteries at a fixed power drain until they reached a cut-off voltage.

Discharge tests of three brands, Energizer, Duracell, and AlphaCell, revealed that there is one battery that crushed its competitors — Energizer Ultimate Lithium.

Whether you're looking for AA or AAA, alkaline or lithium, follow Which? expert advice to help you buy the best batteries. Tested brands include Duracell, Energizer, Lidl, and Panasonic. Find out ...

Looking to save big and charge yourself up? Check out these great deal on Energizer AA and AAA Batteries, available for up to 40% off on Amazon for a limited time.

We've tested and reviewed products since 1936. Read CR's review of the Energizer Ultimate Lithium 20,000mAh 22.5W portable charger to find out if it's worth it.

Energizer has started selling what it calls the first disposable AA and AAA alkaline batteries made with recycled batteries.