Deep cycle lithium batteries are designed to support shallow discharges repeatedly followed by recharges. These batteries are best suited for off-grid solar power systems, marine vessels, and RVs which require constant and dependable power sources. Compared to traditional lead-acid deep cycle batteries, lithium-ion deep cycle batteries have multiple advantages like higher energy density, longer cycle life, and faster charging times. Their deep discharge capability, without significant capacity deterioration, makes them favorable for long-term energy storage applications with high demand.