Mighty Max ML15-12GEL 12V 15AH GEL F2 Replacement Battery — 2 Pack (Compatible with BackUPS Pro 650 BK650M)

ML15-12GEL is a 12V 15AH GEL rechargeable, maintenance free battery sold as a pack of 2. Designed as a direct replacement for applications like the BackUPS Pro 650 BK650M, these GEL cells hold charge longer thanks to a slower self-discharge rate versus AGM batteries, making them an attractive upgrade for standby use. Built to perform across a wide range of climates, the batteries maintain reliable output in extreme temperatures — from summer heat to winter cold. Each unit uses a thick, non-spillable gel paste that reduces the chance of leaks, lowers the risk of acid spills and harmful fumes, and improves safety in installation and transport. The gel construction also helps the battery withstand vibrations and shocks, making it suitable for demanding environments. Backed by Mighty Max’s reputation for quality, these GEL batteries offer superior discharge characteristics, improved safety, better overall performance, and a longer service life.