SunRobotics Hi-Watt 9V Long Life General Purpose Batteries Set of 10 Best for DIY Projects. Features of 9V Ordinary Battery for Arduino/Raspberry-Pi/Robotics: · Model Number: 9V 6F 22. · Battery Type: Zinc Carbon. · Size: 6F22 006P. · Jacket: Metal. · Single Battery Dimensions (mm): L- 26. 5, H - 48. 5, W - 17. 5 (Max). · Nominal Voltage(V) :9V. · Discharge Resistance(Ω): 620. · Cut-off Voltage(V): 5.4. Applications of 9V Ordinary Battery for Arduino/Raspberry-Pi/Robotics: · DIY projects. · Electrical/Electronic projects. · Radios. · Multimeter. · And many more.