24v lithium ion deep cycle battery with LiFePo4 battery cells. Battery cell is tested before assemble. It does not have toxic chemicals and offers four times the power density at a third of the volume compared to lead acid. For these reasons it's safe for household use. 24v lithium marine battery With low internal resistance and high, flat voltage characteristics during strong current discharge, possible working in high temperature environment. which ensures a wider application field. Like outdoor UPS/Solar. 24v 200ah lithium battery with long storage and long life cycles. It offers problem-free charge after long storage, permitting to use in a wide.