The Smart-UPS series of UPS Battery Backup systems from APC, American Power Conversion, offers efficient power protection for on-line, networks, servers, point-of-sale, routers, hubs and switches, as well as 3-phase protection for 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 Smart-UPS UPS Battery Backup equipment. We carry the batteries for nearly all Smart-UPS series UPS Battery Backup systems, including rackmount, tower and larger models. 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.