4 Pack 18650 Rechargeable Battery Set, 3000mAh 3.7V Flat Top Battery with Storage Holder Case for Flashlights, Headlamps, Electronic Device

3.7 volt rechargeable battery : Compatible with flashlights headlamps, doorbells, cameras, small fans, etc. Helps you power up your devices at any time Long Lasting and Rechargeable : 3000mAh High capacity rechargeable batteries support stable 3.7v output voltage, makes the devices work more stable and lasting longer, great replacement batteries for high frequently used devices. Reliable and Safety : 3.7 volt lithium ion battery with Anti corrosion and flame retardant shell can effectively protect the Flat top battery and prolong the service life of the battery. What you Get : Flat Top rechargeable battery*4 and 2* box.