Mighty Max ML35-12GEL 12V 35AH GEL NB Replacement Battery — Compatible with Murray 30577X8A Lawn Mower (2-Pack)

The Mighty Max ML35-12GEL is a rechargeable, maintenance-free 12V 35AH GEL battery sold as a 2-pack and intended as a replacement compatible with Murray 30577X8A lawn mowers. Its gel chemistry exhibits a slower self-discharge rate than AGM batteries, so it retains charge longer during periods of storage — making it a practical upgrade for seasonal equipment. Engineered to operate reliably across wide temperature ranges, it provides steady power whether you’re working in summer heat or cold winter conditions. Safety and durability are enhanced by a thick, non-spillable gel paste that reduces the chance of leaks and acidic fumes; this design also helps the battery resist vibration and shock for demanding applications. Backed by Mighty Max’s reputation for dependable products, this GEL battery offers improved discharge behavior, greater safety, strong performance, and an extended service life.