Delivering power when you need it, the Mighty Max ML100-12GEL 12 Volt 100 AH (Maintenance Free) battery which features a built in volt meter and charge status indicator Requires no addition of water during the life of the battery. The Mighty Max ML100-12 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, Golf Carts, Hunting, Lawn and Garden Tools, Medical Mobility, Motorcycles, Power sports, Portable Tools, Solar, Toys and Hobby, Access Control Devices, Emergency Lighting, Security and more