Smartphones can be charged via the USB port of your on-board computer. This requires the use of the on-board computer and a sufficiently charged rechargeable battery.
Proceed as follows:
1. Open the protective cap of the USB port on the on-board computer.
2. Connect the USB port of the external device to the USB socket on the on-board computer using a standard Micro-A/Micro-B USB 2.0 cable. Using a USB cable that is not standard-compliant or a cable/adapter combination can cause damage to the on-board computer.
3. After charging has completed, close the protective cap again.
Caution: Power consumers connected to the on-board computer can affect the battery life of the eBike.