Introducing the UltraFire 17670 3.7V 1800mAh Rechargeable Lithium Batteries With Protection - the innovative solution for all your battery needs. These batteries come equipped with integrated battery overcharge and discharge protection circuits, ensuring the safety and longevity of your devices. With a high discharge performance and a capacity of 1800mAh, these Li-ion rechargeable batteries are perfect for powering your electronic devices. Plus, with over 500 charge-discharge cycles, you can rely on these batteries for long-term use. Brand: UltraFire Type: 17670 Capacity: 1800mAh Actual capacity: 1600mAh Rated Voltage: 3.7V Charge Termination Voltage: 4.2V Discharge Termination Voltage: 2.75V Material: Lithium Weight: 85g Dimensions: 67*17*17 Packing list: UltraFire 17670 Battery *2 Don't settle for ordinary batteries, upgrade to the UltraFire 17670 3.7V 1800mAh Rechargeable Lithium Batteries With Protection for a reliable and efficient power source. Get yours now and experience the difference!