The Nitecore NL1826R is button top rechargeable 18650 Li-ion battery. The dual-LED power indicator located next to its positive terminal, which glows red while charging and green once charging is complete. The battery has 3.7V with 2600mAh of capacity. Built-in smart USB-C port for easy charging. The NL1826R Li-ion batteries are designed for powering high drain devices such as flashlights, lanterns, headlamps, and bike lights, as well as various other devices.

Specifications:

• Battery Size: 18650
• Battery Chemistry: Lithium Ion (Li-Ion)
• Terminal Type: Button Top
• Nominal Voltage: 3.7V
• Nominal Capacity: 2600 mAh
• Estimated Charge Cycles: 500 cycles
• USB Charging Voltage: 5V
• USB Charging Current: 800mA (Maximum)
• Shelf Life: 10 Years
• Dimensions:
  • Length - 71.3 mm
  • Diameter -18.3 mm
• Weight: 47 g

Note: It does not come with USB cable.