ML35-12GEL 12V 35AH GEL NB Replacement Battery — Compatible with Simplex 4208A Emergency Light

Model ML35-12GEL is a maintenance-free, rechargeable 12V 35AH GEL battery built for dependable standby power. Compared to AGM cells, this GEL design features a slower self-discharge rate, so it holds charge longer when not in use — making it an excellent upgrade for emergency lighting and backup applications.

Mighty Max engineered this battery to perform across wide temperature ranges, delivering stable output whether you’re operating in hot summer conditions or in cold winter environments. Safety and durability are enhanced by a thick, non-spillable gel paste that minimizes leak risk and reduces acidic fumes; the construction also resists vibration and shocks for reliable service in demanding settings.

Trusted by users for consistent quality, Mighty Max’s advanced GEL technology provides superior discharge characteristics, improved safety, better overall performance, and a longer service life. Compatible with Simplex 4208A emergency light units.