GP Recharge 4 x AA Rechargeable Batteries

What you're getting

Stock your drawer with these four rechargeable AA batteries and you're sorted for months. They'll take a charge up to 200 times over, last three times longer than standard disposables, and hold onto about 80% of their power even if you leave them sitting around for a year. Each battery measures roughly 5 x 1.4 x 1.4 cm, so they'll fit any standard AA slot without faffing about.