Before the first trip, the battery must be loaded with the charger supplied for 4 to 6 hours.1. Connect the charger to the socket. You will find that the control lamp on the charger shines green, which means that the device works properly.2. connect the charger to the battery. The charging control lamp shines red as the battery is loaded. Remember that you can charge your battery in the bike via the connection to the left side of the frame, or if you can also charge it from the frame outside the bike.3. When the battery is fully charged, the charging control lamp returns to its original green color.4. To separate the charger, it is recommended to separate it from the battery and then from the socket.5. If the battery is completely discharged, the loading time is between 6 and 8 hours.6. Do not cover the charger or the battery during the charging process, otherwise there is a risk of fire due to the heat formation.Use the original charger for charging the battery, otherwise the battery and electronics are not covered by the guarantee.On our website you will also find a quick charger that halves the loading time.