Deka/SeaHawk Dominator Gel Battery These sealed batteries use a unique "Gel" substance in place of the original liquid sulfuric acid. They cannot spill even if inverted or cracked and are more shock and vibration resistant than conventional batteries. -100 percent maintenance free- No need to check electrolyte levels. Install it and forget it. -Ideal for engine starting and/or trolling- Great multi purpose battery. -Faster recharging- For quicker turnaround time -Longer life- Resists damaging over- discharges -Longer operating/ trolling time- Runs considerably longer than comparable wet batteries. -Compucast grids and computer controlled oxide- For maximum durability, power and life. -Sealed construction with gelled electrolyte- Eliminates dangerous spills, gassing and terminal corrosion. Self discharge rate of less than 2 percent per month- Recharges to full power, even if left discharged for months. -Thick consistency of gelled electrolyte and tight-pack construction- Eliminates the damaging effects of vibration. -Easy to install- Convenient for hard-to-reach connection and hook-up Dimensions: 8G24MGroup: 24 Length: 10-3/4" Width: 6-3/4" Height: 9-3/8" Minutes @ 25 Amps: 74 CCA @ 0 degree F: 4108G27MGroup: 27Length: 10-3/4" Width: 6-3/4" Height: 9-3/8"CCA @ 0 degree F: 505