Mighty Max ML35-12GEL 12V 35AH GEL NB Replacement Battery — Compatible with Doorking 6400 20W Solar Control Box

ML35-12GEL is a 12V 35AH GEL rechargeable, maintenance-free battery built for dependable service. Its GEL chemistry yields a slower self-discharge than AGM batteries, so it holds charge longer when idle — an ideal upgrade for applications that sit unused between cycles. Designed to perform reliably across a broad temperature range, this GEL battery maintains steady power delivery in both hot summers and cold winters thanks to strong resilience against temperature fluctuation. Constructed with a thick, non-spillable gel paste, the pack minimizes the risk of leaks, acid spills, and harmful fumes while offering greater resistance to vibration and shock for rugged installations. Trusted by users for quality and durability, Mighty Max delivers the advantages of advanced GEL technology: superior discharge characteristics, improved safety, dependable performance, and an extended service life.