Mighty Max ML9-12GEL 12V 9AH GEL F2 Replacement Battery Pack — Compatible with APC Back-UPS ES 650 (6 Pack)

ML9-12GEL is a 12V 9AH GEL rechargeable, maintenance-free battery from Mighty Max, sold here as a pack of 6. Designed as an F2 replacement for APC Back-UPS ES 650 units, these GEL cells offer a lower self-discharge rate than AGM batteries, so they hold charge longer when idle and make a reliable upgrade option. Built to perform across wide temperature ranges, the ML9-12GEL maintains consistent output in both hot and cold environments. The thick, non-spillable gel electrolyte reduces the chance of leaks and corrosive fumes while providing strong resistance to vibration and shock—features that suit demanding or mobile applications. Backed by Mighty Max’s reputation for quality, these GEL batteries deliver improved discharge characteristics, enhanced safety, dependable performance, and extended service life.