Kratax 850mAh 9volt Li-ion Rechargeable Battery Specification Voltage: 9V Chemistry: Lithium-ion Capacity: 850mAh Input:100-240V AC 50/60Hz Life Cycles: >500 cycles life Package contents Li-ion rechargeable batteries(By your Choice) Kratax Brand New 850mAh lithium-ion rechargeable battery provides longer use time per charge Multi-Protection Over charge protection Over discharge protection Short circuit protection Over heated protection Over voltage protection Over current protection Money Saving 1pcs Kratax rechargeable battery ≈ 1500pcs Alkaline battery Without mercury, cadmium, and lead Reducing your carbon emissions and the waste caused by single-use 9V battery. Size & Weight Size: 48.44*25.5*16.2mm / 1.9*0.98*0.63in Weight: 32g/ per battery Please ensure the battery installed is correct: make the +/- pole of the battery is match for the +/- pole of the charger. Larger capacity and ultra long lasting Perfectly Used Suitable for Smoke Alarm / Smoke Detectors, Guitar, Tens Unit, Remote Control Toys, Wireless Microphone, Multimeter, Cameras,Transistor Radio, Walkie-talkie, Alarm Clocks, Portable Radios and other electronic and medical equipment. More Perfect Product 1.5V AA Rechargeable Lithium Batteries 1.5V AAA Rechargeable Lithium Batteries 9V Rechargeable Lithiium Batteries 3.7V Rechargeable CR123A Lithium Batteries 1.5V AA Li-ion Rechargeable Batteries Charger 3500mWh Hixon Lithium Battery LOT Hixon 1.5V Rechargeable AAA Lithium Batteries,4x1100mWh 1500Cycle AAA+1Charger 4PCS 850mAh 6F22 9V Li-ion Rechargeable Battery With Charger Lithium 9V Block 8x 900mAh Rechargeable 3.7V CR123A Lithium Battery for Arlo Camera 600 Cycles