New Pro-Charger designed for easy usage and charging needs. The perfect solution for all your power needsPRODUCT SPECSThe Energizer® Pro-Charger can tell you:•Energizer® Rechargeable – The #1 selling rechargeable battery brand in the world (based on scan data)•When your rechargeable batteries will be fully charged — so you can leave them to it•How full your rechargeable batteries are — so you always have enough power for the job•If your rechargeable batteries can still receive a charge — so you know when to replace them•When a non-rechargeable, or old battery is in the charger — a red X instantly appears•The Energizer® Pro-Charger charges four AA, or AAA, rechargeable batteries in 3 to 6 hours. It’s powered from the mains and with its built-in over-charge protection, it maximizes cycle of the cells.