9v Rechargeable Batteries kratax 4 Pack 850mAh high Capacity Rechargeable 9 Volt Lithium-ion Batteries with Fast Charger, 1000 Cycles Long-Lasting for Smoke Alarms Guitar Multimeter

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• 850mAh High Capacity: Kratax 9v rechargeable batteries cycle life can reach 1000 times, 40% higher capacity than other brands of 600mAh lithium-ion battery, full charge voltage: 8.4V-8.7V, maximum output current: 2.3A, larger capacity and ultra long lasting. The service life is 3 times that of alkaline batteries and 5 times that of carbon batteries.
• Multi-Protection: Kratax 9 Volt 6F22 lithium battery and chargers have passed ROHS, CE, CQC, PSE, etc. certification. Built-in protection device to prevent Overcharge, Overvoltage, Overcurrent, Over Discharge, Reverse Charge and Short-circuit protection, more secure to use.
• Wide Compatibility: Our rechargeable 9v battery is suitable for various electrical appliances such as Wireless Microphone, Multimeter, Electric Guitars, Walkie-talkie, Toy Remote Controls, Smoke Alarm, Smoke Detectors, Cameras, Massagers, Alarm Clocks, Portable Radios, Transistor Radio.
• Independent charging Channels: Input: 5V 2A. With USB Type-C charging cable that can fully charge 1 or 4 batteries in about 3.7 hours. Constant voltage charging is controlled by IC, there is no memory effect, without any damage to the battery, ensuring the battery's cycle life and capacity.
• Low-carbon and environmental: It does not contain any toxic and harmful heavy metal elements and substances, such as lead, mercury, and cadmium. Low self-discharge, is about 0.03% per month, which is less than 1/100 of Ni-MH batteries, the weight of our battery is 30% lower than Ni-MH batteries.