GP Recharge 4 x AAA Rechargeable Batteries

What you're getting

Grab a pack of four AAA rechargeable batteries and you're sorted for toys, remotes, and whatever else needs powering. You can recharge these up to 300 times, which beats buying single-use batteries hands down — they'll last nine times longer. Pop them in, use them straight away, and they'll hold onto about 80% of their charge even if you leave them sitting in a drawer for a year. Each battery measures roughly 4.4 x 1 x 1 cm.