Bundle - 2x Battery EN-EL9 / EN-EL9a with Infochip &middot; 100% compatible with Nikon D40 | D40x | D60 | D3000 | D5000 Lithium-Ion Technology - No memory effect - Capacity: 1100mAh, Voltage: 7.4V Compatible Battery Part Number: Nikon ENEL9, EN-EL9, ENEL9a, EN-EL9a Full Coded Version: Show Battery Level in Camera LCD - can be charged by your original Charger Design and technical concept by ExtremeWolf, Germany.