The LeEco Le 1s phone supports Qualcomm's Quick Charge 2.0 over its USB Type-C port so let us see how it works with external chargers like the USB Power Delivery based Targus 45W USB Type-C Laptop AC Wall Charger (click here for Amazon pricing).
Here we see that the LeEco Le 1s on a fully drained battery draws only 1.5 amps of current at 5 volts. We can conclude that the Targus 45W USB Type-C Laptop AC Wall Charger is still able to charge the LeEco Le 1s although not as fast as its own charger.