18,500mWh high capacity 3.7V Li-ion batteries (BATTERY SIZE: 21.5mm x 76mm，NOT AA, AAA OR C BATTERY), perfectly used for a tactical flashlight(M2R Pro/Odin 2000/PD36R/Warrior X Pro), toys, headlamps, battery-operated fan, and other household devices.
Built-in USB-C port
Easy to charge with the included Type C cable, no additional battery charger required, just plug into any USB port at any time and anywhere.
These batteries could be recharged up to 1200 times, longer battery life than alkaline batteries, no need to buy batteries frequently.
A built-in integrated safety circuit protects the battery from over-charge, over-discharge, short-circuit, and over-heat ensures complete safety for the battery charging.
EBL 21J 3.7V Li-ion batteries with 18500mWh ultra-high capacity, support stable power, and super longer runtime in the LED flashlights, suit for outdoor activities and emergency power supply.
What You Get
2 x 18,500mWh 21J Li-ion battery 1 x Type C cable 1 x User manual
【Is it worth buying rechargeable batteries? 】
In most cases, if you are using rechargeable batteries instead of disposable batteries. You won’t lose too much performance: the best rechargeable batteries can power your device with just one charge, which lasts as long as most high-quality disposable batteries. Over time, the cost is very low.