American made and considered best in class Lithium Iron Phosphate Deep Cycle batteries. It can be wired in series or parallel and mounted in any orientation. It is safe, reliable and maintenance free. Built for RV, camper van, boat, and trolling motor applications. Capable of 3,000-5,000 deep discharge cycles providing up to 10-15 years of power. Featuring low temperature protection, high and low voltage, short circuits for peace of mind. Weight is 31 pounds (see dimensions for size).