We have been living on our boat Aquila now for over 6 months with two 300AH Abyss batteries as our house bank, combined with four solar panels, two MPPT controllers, and a DC to DC charger. We are very pleased with the performance of the batteries, the lightweight design, and the obvious attention to detail in regards to the internal components and overall internal design of the cells. These batteries power our electric oven, electric induction stovetop, electric water kettle, autopilot, 1HP electric motor for our desalination unit, and everything else on the boat with the help of a 3000-watt inverter charger to take the lithium battery power and convert it to 120v for our house appliances and laptops. There are tons of LifePo manufacturers out there, but there aren't many focusing on quality and longevity. We trust our Abyss batteries and are going to sail them around the world this year. You can find cheaper lithiums featuring plastic internals, lower life expectancy, stamped MADE IN CHINA, but these are not that. These are highly engineered and well-thought-out batteries for people who wish to own the best. Don't take my word for it, do your research before you buy.