CoilART - 21700 4000mAh 40A Battery

by CoilArt
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The CoilART 21700 battery is a 4000mAh external battery designed for use with mods that accommodate this larger type of battery. The battery has a nominal voltage of 3.7V and can be charged up to 4.2V.

Before using an external battery we would ask you to read our Battery Safety Guide

Product Specification

1 x CoilART - 21700 Battery

Dimensions: 21mm X 70mm
High Drain Battery
Chemistry: Li-Ion
Capacity: 4000 mAh
Nominal Voltage: 3.7V
Max Discharge Current: 40A
Max Short Peak Discharge Current: 40A
Positive Pole: Flat
Protected: No

For information regarding our terms and conditions for warranty please click here. There you will find warranty information for all of our products.