UltraLast UL-NB1L Rechargeable Digital Camera Battery Equivalent to Canon NB-1L Designed for high output outdoor solar lighting Compatible with Westinghouse super bright solar lights and high output solar lights from Hampton Bay, Yards and Beyond, Allen and Roth, Portfolio and Smith and Hawken 2-pack Rechargeable digital camera battery Designed to be compatible with the same models as the Canon NB-1L Lithium-ion chemistry 680 mAh capacity 3.7 volts