Dark Night Outdoors introduces the all new 5000mah Ultimate Power Kit for anything that needs a power boost on your firearm! Power up Thermal Scopes, Monoculars / Scanners etc. With our advanced battery mount design that is compatible with MLOK or KeyMod configurations, you can mount the battery any way you like! It is designed to slightly rotate the battery in the holder to hide the battery indicator lights and still be able to access the power button. We hunt in the dark, and we want it to be dark! Don't get detected before you get a shot off! With our battery mount system you can do just that! Battery holder is made of a lightweight yet durable carbon fiber reinforced nylon that holds the battery firmly but is also easily removable to swap batteries out if needed. Dark Night Outdoors also provides a magnetic rotatable cord (18" in length) that will save your expensive equipment by not breaking the power cord connector off in your device. The cord will simply detach and can easily be reattached by simply getting the cord close to the port. Easily manageable even with gloves on. Extra batteries and cord lengths available *We are constantly improving our designs and actual product shipped may vary slightly from what is pictured.