4-Pack 12V 35AH GEL NB Replacement Battery — Compatible with Sonnenschein NGA5120030HSOBA

ML35-12GEL is a maintenance-free, rechargeable 12V 35AH GEL battery sold as a pack of 4 and compatible with Sonnenschein NGA5120030HSOBA. Designed to hold charge longer than AGM types, these gel cells have a lower self-discharge rate so they retain power better when left idle—making them an excellent replacement or upgrade. Built to perform across a wide temperature range, Mighty Max GEL batteries maintain reliable output in both hot and cold conditions and tolerate temperature swings without significant loss of performance. The internal construction uses a thick, non-spillable gel paste that minimizes the chance of leaks and acidic fumes, improving on safety compared with flooded designs. The gel formulation and robust build also improve resistance to vibration and shock, so these batteries stand up to rugged, demanding applications. Backed by Mighty Max’s reputation for quality, the ML35-12GEL delivers the advantages of GEL technology: improved discharge characteristics, enhanced safety, dependable operation, and extended service life.