This perfect trickle charger is ideal for maintaining 12V batteries in cars, motorcycles, boats, snowmobiles, tractors, and more. Its compact design allows for indoor and outdoor use, while the blocking diode prevents back-discharge. The included battery clamps and 12V plug ensure a simple and secure connection. Product Type: Solar Battery Protector; Open Circuit Voltage (Voc): 22.41V; Operating Voltage (Vop): 17.9V; Short Circuit Current (Isc): 0.61A; Operating Temperature: -20°C to +60°C; Connector Type: SAE connector for adapter cables, battery or cigarette lighter adapter; Operating Voltage: 17.9V; Max. Charging Current: 0.56A; Power: 10W; Dimensions: Width 25.30 cm, Height 1.50 cm, Length 37.50 cm; Weight: 0.5 kg