18650 3.7V Lithium Battery

1.  Premium Li-ion Cells For Longer Battery Life .
2. Compatible for high power devices, such as LED lights, solar lights, toys, small fans, RC car, headlights, etc.
3. Built-in safety circuit board protects battery from over-charge, over-discharge, short-circuit, over-heat.
4. Adopts high energy aggregation technology that will last 5 times longer in high drain devices.