Predator Precision has developed an external battery / DVR combo for the exclusively for the N-Vision Halo Thermal. This unit was developed by our staff, with the needs of the Halo user in mind. We found that an external battery supply is needed for the Halo, so we combined a 10,000 mah Battery pack that includes fast charging (18 watts) in a ultra high quality pack. We cut no corners on selecting a power supply for this unit, which includes over voltage protection, short circuit protection, over temp protection and smart chip technology. Our Integrated DVR records at full D1 resolution (720p) at 25fps, and includes a microphone for clear audio. The cable is included, as well as a Samsung Micro SD card, so you are ready to record. This unit replaces your existing Halo power cord that came with the scope.