Mighty Max ML9-12GEL 12V 9AH GEL F2 Replacement Battery Pack of 4 — Compatible with APC Smart UPS 2000 SURT2000XLI

ML9-12GEL is a rechargeable, maintenance-free 12V 9AH GEL battery; this listing includes a pack of 4. The GEL construction exhibits a slower self-discharge rate compared to AGM batteries, so these cells retain charge longer when left unused — an ideal upgrade for backup and UPS applications. Designed to handle wide temperature ranges, these batteries maintain reliable output in both hot summers and cold winters thanks to their resistance to temperature fluctuations. Built with a thick, non-spillable gel paste, the design reduces the chance of leaks, acid spills and harmful fumes while offering improved vibration and shock resistance for demanding environments. Backed by Mighty Max’s reputation for dependable batteries, the ML9-12GEL delivers the benefits of GEL technology: superior discharge performance, enhanced safety, robust operation and a longer expected service life.