Power-Sonic PS-12120 12V/12AH Sealed Lead Acid Battery w/ F2 Terminal (also works with APC BackUPS 650M) Looking for reliable performance from your APC BackUPS 650M UPS Backup? Our APC BackUPS 650M battery will provide you the performance and dependability that you demand for your UPS Backup. With an efficient rating of 12V Volt and 12 , you never have to worry about being too far from an ac outlet. Our line of APC BackUPS 650M 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