Hi everyone, I have an armasight zeus pro 640 and I'm trying to run a DVR and a battery pack on it at the same time. I've read armasight extended battery packs aren't very good and it seems that everyone is using anker battery packs these days. Also, from my limited research a lot of people like the mdvr so i was going to go in that direction BUT they also say you have to buy a modified cable to avoid horizontal lines and i don't know where to buy that. It sucks spending this kind of money then realizing the product isnt squared away. Any help would be greatly appreciated.