Pentax D-LI92 Battery (2-Pack) and Charger by Wasabi Power
UltraPro D-LI92 Battery 2-Pack Bundle 1200mAh Digital Video Batteries with Rapid Travel Charger for Select Pentax Cameras Including Optio I-10, WG-1, WG-2, WG-3, WG-10 and Others : Electronics - Amazon.com