The American Battery Company RBC35 is a genuine Replacement Battery Cartridge for an Uninterruptible Power Supply (UPS). The ABC RBC35 is designed specifically for use with select APC brand UPS systems. It features one maintenance-free, sealed (leak-proof), lead-acid battery (12V 3.2 ah). RBC assemblies come complete with all required connectors, cable, fuses and metal enclosures where applicable, along with a simple installation guide. Each battery is tested twice for quality raw batteries are tested before assembly and then tested again after final assembly to ensure a top-quality replacement battery