Need a replacement battery for your emergency lights? Check out the Dantona CUSTOM-318 Rechargeable Replacement Battery! This replacement 3.6-volt, 1,000 mAh Nickel Cadmium (NiCd) battery is used in many applications and meets or exceeds original manufacturer specifications. . 3.6 volts, 1,000 mAh . Long-lasting . Rechargeable