DSTE D-Li109 Li-ion Battery (2-Pack) and Micro USB Charger Suit for Pentax S2 S1 K-R K-2 K-30 K-50 K-500 Package Includes: 2 x Battery; 1 x USB Charger; 1 x USB Cable High-quality cells with low self-discharge Decoded and Compatible with Original Chargers Memory free for maximum performance, protection against short curcuit and overcharging 2-years Warranty by seller