Renogy REGO 12/24V 30A DC-DC Battery Charger. Auto 12V/24V switching for versatile vehicle power systems. Smart bidirectional charging means no flat batteries. Bluetooth & CAN Control provide real-time status updates, anywhere. 14-layer protection offers reliability and efficiency, always. Globally certified with 5-year warranty for peace of mind. Dimensions approx. 239 x 92 x 69.5mm.