8-Pack 12V 9AH GEL F2 Replacement Batteries for Steele SP-GG300 / SP-GG300N Generators

ML9-12GEL is a maintenance-free, rechargeable 12V 9AH GEL battery with F2 terminals, sold here as an 8-pack and designed to replace batteries in Steele SP-GG300 and SP-GG300N generators. These GEL cells have a slower self-discharge rate than AGM types, so they hold charge longer during storage and make an excellent upgrade for standby or intermittent-use applications. The sealed construction uses a thick, non-spillable gel electrolyte that reduces the risk of leaks and acid fumes while improving resistance to vibration and shock—ideal for rugged or mobile environments. Built to deliver dependable power across a wide range of temperatures, these Mighty Max GEL batteries maintain performance in both hot and cold conditions. Backed by Mighty Max’s reputation for reliability, the ML9-12GEL offers enhanced discharge characteristics, increased safety, and longer service life compared to conventional sealed lead-acid options.