Extend your nighttime mission capability and hunts by up to 8 hours by adding this Armasight® Extended Battery Pack to your Armasight® Night Vision or Thermal optics. No more carrying around a pocket full of batteries! Just attach this to your optics and you're good to go all night. Plus, it has a video out splitter, so you can attach your DVR recorder. Compatible with all Armasight high performance Digital and Thermal optics.