WindRunner™ self-balancing electric vehicle user manual789. Troubles and alarms9.1 FAQs and troubleshooting1, Unable to power on: Please verify whether the battery of intelligent remote key has sufficient capacity, or retest the power afterthe battery is replaced. If powered on only when the intelligent remote key is quite close to mainframe, it meansthat the battery of the intelligent remote key has been approximately used up and you are now required to replacethe battery. (consult 4.5 of this manual) If the battery of the intelligent remote key has enough battery capacity but is still unable to power on, thenit may be caused by the power of the WindRunner battery being fully used up. It may also refer to an internalcircuit failure. Please retest only after the WindRunner is fully charged. If still unable to power on after it has beenfully charged (refer to 7.2 of this manual), please contact the local agent/distributor for repair. During normal riding, if the WindRunner is unable to power on after automatically being powered off, or ifthere is a high resistance felt during traction of WindRunner, then it is probably caused by internal motor ridingcircuit failure. To prevent short-circuiting of the battery, the user should remove both batteries as soon as possible.Do not hesitate to contact the factory for repair.2, After powered on, alarm or red LED continuously flickered: