AFSONGOO 2 Pack 3.7 Volt 18650 Rechargeable Battery 18650 Li-ion Battery for Flashlights, Headlamps, Doorbells, RC Cars (Button Top)

Product Dimensions: 67*18*18mm/2.64*0.71*0.71inch. NOTE: These are BUTTON TOP 18650 batteries with metal tip on the positive end. Please confirm the battery size and battery type before purchase

Wide Compatibility: Widely used for LED flashlights, solar lights, racing, game controller, emergency lights, portable devices, headlamps, toys, remote controls, doorbells and other electronic devices.

Advanced Smart Cell Technology: The built-in intelligent battery cell ensures efficient power management and longer-lasting usage.

Safety Certifications: Trust in the quality and safety of our battery, certified by CE, FCC, PSE, ROHS, and UL standards.

Protective Mechanism: Built-in protection features safeguard your device from overcharging, overheating, and short circuits.