The Matrix-UPS and SmartCell-XR series of UPS Battery Backup systems and battery modules from APC, American Power Conversion, offers efficient power protection for networks, servers, data centers and additional business critical applications. It provides high-performance surge suppression and keeps your equipment running during a power outage. Wholesale Batteries Direct has the high quality batteries that you want to buy at discount prices to power your APC Matrix-UPS and SmartCell-XR UPS Battery Backup equipment. We carry the batteries for most Matrix-UPS and SmartCell-XR series UPS Battery Backup systems. All of our batteries come with a full 1 year warranty. Be sure to save and re-use your existing cables and connectors, when you replace the batteries.