MK Deep Cycle Gel Cell 12 Volt Battery for Backup Sump Pumps;

Our best battery for use in Marine situations and particularly strong for use with a Backup Sump Pump system or home medical equipment. This design will out-last even the best Marine Deep Cycle batteries. For the power you need WHEN you need it, this is the one to buy. It holds its charge longer and can handle the demands of the best back up sump pumps and other equipment. Whether using direct 12 Volt back-up systems, or connecting through a power inverter, this battery has the reserve capacity to keep going long after other batteries have quit. When compared to regular deep cycle batteries, this one requires no maintenance and lasts 2-3 times as long. When the others die in 3 years or less, this one lasts 5-10 years with 7-8 years on average.