Hotel HVAC Parts carries hundreds of UPG products and replacement parts. For almost half a century, UPG battery and power solutions have been powering lives, everyday applications and groundbreaking innovations. UPG manufactures UniversalÂ® VRLA AGM & Gel batteries. KinetikÂ® Pro Gel. KinetikÂ® powersports & consumer batteries. custom smart batteries. chargers. power accessories. security components. low voltage wire and cable products.