backup power unit

seems the classifieds section is pretty stagnant so ill ask here. anyone have an extra power unit they dont use and want to sell? My new EMS is giving way different readings than the other one in the shop. And i sold my old Pulse to a friend. And while its going back to Eikon, i need something else. we have a lunchbox here but id rather something of my own thats decent that i can use for a backup in the future. Anyone have any old EMS units or the old Pulse ones they want to get rid of? Im lookin to spend only around like $150-200ish max. let me know the runtime and how long youve had it and shit. thanks guys

reluctant bump

National Tattoo Supply.......refurbished kick ass power packs