D-Li109 Rechargeable Lithium-Ion Replacement Battery Pack - (1200 mAh 7.4V) - Replacement Battery For Pentax DLi109 Rechargeable Battery Replacement battery for the Pentax DL-I109, Lithium-Ion (Li-ion) 7.4V (1200mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark