Great solution to disposable batteries - SightMark Quick Detach Battery Pack

I have several night vision and thermal scopes. Feeding them with even expensive disposable batteries provides limited run-time. The SightMark external rechargeable battery is the perfect solution. Low profile, so it fits on the rail in any position. You can place the battery on the top rail in front of the scope, the low profile keeps the battery out of the scope view. I'm getting 14 hours of continuous run time with the SightMark battery while running my AGM TS50-640 Thermal scope. I purchased two of the batteries, I have never needed the backup battery. The battery will also provide power to any of your mobile devices. I use an iPad to show what is on the thermal scopes sight, I will probably use the other Sightmark batter to run the iPad. The built-in quick attach/detach works great. As I sure you can tell, I highly recommend the SightMark Quick Detach Battery Pack.