Canadian made, never been used LiFePO4 battery. Enerwatt WPL31, 12V deep cycle Lithium-ion battery, 110 Ah, 2500+ cycles, group 31 Can be fully discharged and quickly charged without damaging the battery. Has built in BMS. Less than half the weight of a lead acid battery. Great for house battery for a camper or boat. Brand new, never installed. The attached link will give you all of the details.