Interstate Batteries are one of the most dependable batteries you can have. Interstate’s innovative battery technology allows for reduction in battery paste breakdown, maximum cycling performance, higher capacity, and more battery cycles. Sometimes called the workhorse of the renewable energy industry, these modest-price batteries are the best choice for many off-grid households. Life expectancy is typically about 5 to 7 years. They’re rated for 300 cycles to 80% Depth of Discharge (DOD).