(2 Pack) 3.7V Rechargeable Battery 18650 3000mAh Large Capacity Button Top Batteries, For DIY, Power Tools, Flashlight, Camera,Doorbell,Headlamp

(Reliable Button Top Battery) - Diameter: 18.67 mm, length: 67 mm.(Please note: Our batteries are not 3.7V Flat Top/3.7V AA/1.2V AA/1.2V AAA. Please choose a suitable type for your devices)

(Real Large Capacity And Excellent Performance) - PMAX 3.7V battery has a real 3000 MAH, supports a stable output voltage of 3.7 V, and makes the equipment work more stable and durable.there are great replacement batteries for high frequently used devices. A fully charged battery can run your flashlight or headlamp for 2-4 hours / doorbell for 3-6 months / small fan for 3-4 hours.

(Rechargeable 1000+ Times) - A single 3.7 Volt rechargeable battery can recharge up to 1000 charging and discharging cycles and no memory effect. Replace 1000+ disposable alkaline batteries, reduce the waste of resources and good value for the money.