Wasabi Power Battery for Pentax D-LI109 Rechargeable lithium-ion battery for Pentax D-LI109 Premium Japanese cells for longer battery life with no memory effect Completely compatible with the Pentax camera and charger Rated at 7.4V and 1400mAh for a 30% longer run time than the Pentax original Includes DLI109 battery with 3-year manufacturer warranty