Delivering power when you need it, the mighty max ML35-12GEL 12 volt 35 Ah (maintenance free) battery. Requires no addition of water during the life of the battery. The mighty max ml35-12 gel is a True Deep cycle battery that can be mounted in any position, requires no maintenance. When a gel cell battery is charged, no hazardous fumes escape the battery case, gases are processed within the battery itself. Mighty max gel batteries are utilized in a wide variety of applications including; consumer electronics, electric vehicles, engine starters, hunting, lawn and garden tools, medical mobility, motorcycles, power sports, portable tools, solar, toys and hobby, access control devices, emergency lighting, security and more