Specifications
Capacity: 5,300mAh
Voltage: 3.6V
Continuous Discharge Current: 20A MAX
Length: 77.2±0.3mm / 3.04"±0.01"
Diameter: 22.2±0.3mm / 0.87"±0.01"

Unprecedented Battery Performance
● The dual polarities of the 21700 i Series Battery at both ends have broken the convention of linking the head and the tail of the flashlight in order to minimize its size and weight.
● The internal resistance is therefore greatly reduced to offer a direct energy conversion to power the device. Thanks to the groundbreaking technology and techniques, this can bring more possibilities to our flashlight design.

Purpose-designed High-performance Protected Circuit
● Effectively protects against overcharge, over discharge and short-circuiting
● Utilizes a high-quality battery protection IC
● Utilizes high-power MOS-FEE in the current regulation module for better efficiency and superior output

External Safety Features
● Equipped at both ends with a nickel-plated stainless steel protector ensuring high impact resistance, good electrical conductivity and oxidation resistance
● Coated with durable metallic film to guard against abrasion

As a patent product developed by NITECORE.
● The 21700 i Series Battery is a proprietary 21700 rechargeable
● Li-ion battery featuring dual way output with positive and negative polarities at both ends and a high energy density.It enables a highly efficient output by minimizing the loss of power due to internal resistance.