We carry nearly all accessories for the APC SmartUPS RM SU5000R5TBX120 UPS. If you are looking for a battery or electronic accessory for the APC SmartUPS RM SU5000R5TBX120 and cannot find it, please feel free to contact us. We are always adding new products to our site, and we would love to help you find it. We always have people, not computers, that answer the phone.