Yuasa/Genesis NP10-6 6V/10AH Sealed Lead Acid Battery with F1 Terminal (also works with APC AP800RT) Looking for reliable performance from your APC AP800RT UPS Backup? Our APC AP800RT battery will provide you the performance and dependability that you demand for your UPS Backup. With an efficient rating of 6V Volt and 10.0Ah , you never have to worry about being too far from an ac outlet. Our line of APC AP800RT batteries are precision-engineered and rigorously tested for voltage, capacity, compatibility and safety to exceed original equipment manufacturer specifications. With an industry leading warranty and customer service, you can’t go wrong. ... More Info