The EverStart Maxx 12 Volt Lead Acid Marine/RV Deep Cycle Battery, Group Size 29DC, is designed to power the high electrical demands of your RV and boat (trolling motor, radio, GPS, fish finder, etc). It��s rated at 845 MCA and 114 amp hour. Extend your time on the water with +30 percent more cycling capability and longer battery life. This battery has superior recharge capabilities for lasting performance. EverStart Maxx Lead Acid Marine RV Deep Cycle Battery Advanced High Density Active Plates Premium Deep Cycle Power for Maximum Electrical Accessories 1 Year Free Replacement Warranty Group Size 29DC (12 Volt / 845 MCA) Maintenance Free