The Extreme Max Cantilever Battery Tray is designed to place the power where you need it! The tray's arms sit underneath the tray, placing yoru battery on top of the lift's horizontal crossbeam. Each tray features a clean, aluminum construction that matches the asthetic of common boat lifts. The single model supports one deep-cycle battery to accomodate 12-volt systems, while the dual model supports up to two deep-cycle marine batteries to accomodate 24-volt systems.