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ASP Lithium Ion 21700 USB-C Battery & Link Case. The ASP 21700 USB-C Battery is a high-performance, rechargeable power cell, designed specifically for ASP law enforcement flashlights.

ASP lithium-Ion rechargeable batteries are custom-fabricated to provide increased energy density and longer life. The ASP 21700 rechargeable battery is optimized for use in high-drain devices such as their performance flashlights. It also features a PCM protection circuit to guard against excessive charge/discharge cycles.

ASP's latest generation of Lithium-Ion batteries feature an integrated USB-C charge port. This means that in addition to in-light recharging (with compatible ASP flashlights), the battery can be charged on its own, simply by plugging a USB-C cord directly into the cell. ASP recommends their Retractable cords (sold separately), or any common, quality USB-C charge cord may be used.

The ASP 21700 includes a Link Case, to safely store, protect and transport the battery. It features an interlocking design that allows multiple Link Cases to be connected to one another for efficient organization.