QIAOJINLIN 2-Pack Backup Battery for Pentax D-Li109 K-R K-30 K-50 K-500 K-2 K-S2 K-S1 Digital Camera 1. Battery Type: Rechargeable Li-ion 7.4V 2. Output Voltage: DC8.4V (max); DC7.2V (mean) 3. Can show battery level in camera's LCD screen as original version. 4. 24-month warranty,tested under strict quality control standards 5. Package includes: 2x Brand New Battery ; 1x User Manual