Amazon.com : Pentax D-LI90E Rechargeable Lithium-Ion Battery for 645, K-1II, K-1, K-3II, K-3, K-7, K-5, K-5II & K-5IIs DSLR's : Digital Camera Batteries : Electronics
Amazon.com: Lenmar Replacement Battery for Pentax Spotmatic 500 Spotmatic II RadioShack 63-5034 Replaces OEM Gold Peak GP192 : Health & Household
DOT-01 Brand 1800 mAh Replacement Pentax D-Li90 Battery for Pentax K-3 II, K-5 IIS, 645D, 645Z, K-5, K-01, K-3, K-7, K-5 II Digital Camera and Pentax DLI90 Accessory Bundle - Walmart.com
Amazon.com : Pentax D-LI90E Rechargeable Lithium-Ion Battery for 645, K-1II, K-1, K-3II, K-3, K-7, K-5, K-5II & K-5IIs DSLR's : Digital Camera Batteries : Electronics