When selecting the oppor17 car charger, the appropriate power should be selected according to the power output voltage of the vehicle and the demand for battery charging. If the vehicle's power supply output voltage is 12 volts, then a 20w on-board charger can provide enough power to charge. However, if a faster charging speed is needed to support the use of high power, a 30w car charger is more feasible. In short, car chargers suitable for vehicles and use should be purchased according to actual needs.
Both chargers are usable. Because this phone is compatible with 300,000 and 20 watts of charging power.