You can charge the energy by moving the first car back and forth by turning the first car with the switch OFF.
After charging, drive on with switch ON.
At the speed of round trip to the distance of 30 cm in about 2 seconds, if you charge about 15 round trips, you will run about 7m.
The charged amount of energy can be confirmed by the brightness of the LED light of the first car.
■ 923 type doctor yellow model
■ 3-car train can be connected/disconnected
■ Dedicated connecting parts for easy connection on one side of the middle car (leading car side)
*Rails are not included.
*Please charge with the switch turned off.

( This is a machine translation. Please allow for possible misinterpretations in the text. )