Nixxell Battery for Pentax D-LI109 and Pentax K-r, K-30, K-50, K-500 Digital SLR (Fully Decoded) 100% Compatible with: Pentax D-LI109 and Pentax K-r, K-30, K-50, K-500 Digital SLR CE Safety Certification, Premium Japanese Cells, 100% memory Free, Super long lasting Recording. Battery Specifications - :1400 mAh /Voltage: 7.4 volts, Chemistry: Li-ion. Includes: 1 x Battery. All items are WT Nixxell Branded. Batteries are OEM equivalent or better. 3 Years Manufacturer Warranty !