Keep the power you need at hand with the convenience of the Energizer Recharge Value Charger. This handy device charges 2 or 4 AA or AAA NiMH batteries in 5 hours. And it’s easy to use: Load up the device, plug into the wall, and get fully loaded battery power when you need it. The charger’s indicator screen glows green when you have a full charge. Should you insert a bad or primary battery, the screen pulses to notify you. Perfect for those most used devices like remotes, computer mice, and even gaming controllers... So maximize battery performance with the charging power of Energizer, the world’s #1 recharge brand (according to market survey data).