The air pump can both use the built-in lithium battery or 12V cigarette socket.
The pump can be used to inflate e.g. your SUP board or deflate it. A charge takes approx. 7 hours
Pump with lithium battery, 70 to 350 litres/min.: · Material: ABS · Voltage: DC 12V · Pressure: 0-16 PSI · Accessories: air hose 1 m / USB cable for charging 5V/2Amp · Power: 100W · Battery capacity: Lithium battery, 4000mAH Airflow: 350(A)L/min 70(B)L/min can inflate and deflate · 2 stage inflation: A stage: low pressure, fast inflation 350L/M or B stage: High pressure, slow inflation 70L/M · Size: 25.2 x 17.5 x 13.3 cm · Weight: 9 kg · LCD display · 6 adapters for different valves