Available exclusively through B&H, the Watson 2-Bay 9V Charger & 2 9V Rechargeable Batteries Kit provides you with a 2-bay charger and two 2 NiMH 9V rechargeable batteries. The charger has an automatic shut-off feature to guard against overcharging and short circuiting. Additionally, four LED indicators display charging progress and a built-in micro controller ensures a full charge.