About this item 
Battery Size: 67*18*18mm/2.64*0.71*0.71inch; NOTE These are 18650 rechargeable batteries BUTTON TOP, please check carefully before purchasing !!!).Please confirm whether the battery model required by your device. 
Wide Compatibility: Compatible with LED flashlights, emergency lights, portable devices, headlamps, toys, remote controls, doorbells solar lights, racing, game controller, ,mini fan and other electronic devices. 
Extended Battery Life: For optimal performance, we recommend charging the battery fully before initial use. It will reach peak efficiency after 3-5 full charge cycles. With no memory effect, this battery can be recharged up to an impressive 1200 times even when partially drained, ensuring prolonged usability. 
Battery Protection: Built with six layers of protection – temperature control, short circuit prevention, overcharge safeguard, and overcurrent defense – our battery maintains stability and reliability. It's a high-performance, durable replacement for worn-out or faulty batteries. Store it in a cool, dry place for extended life.