LI109 1600mAh Li-Ion Rechargeable Battery + Microfiber Cloth for Pentax K-50, K-30, and K-r DSLR Cameras 100% Compatible with original manufacturer equipments and chargers Made with premium lithium-ion cells and tested for high performance and safety. Can be charged with an original Pentax charger or any other compatible third-party charger. Best replacement for the following OEM battery part numbers: Pentax D-LI109, DLI109, Pentax D-L1109, DL-1109, DL1109 Free Microfiber Cleaning Cloth