PENTAX APS-C Accessory | Battery grip D-BG5 – PENTAX - Official Store
Amazon.com: Synergy Digital Camera Battery, Works with Pentax KP DSLR Digital Camera, (li-ion, 7.4V, 1200 mAh) Ultra High Capacity Battery : Electronics
Amazon.com : Pentax KP 24.32 Ultra-Compact Weatherproof DSLR with 3" LCD, Black : Electronics