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• Critical Battery Power: When the battery charge level is 10% or
less, an intelligent safety warning (audible tone and vibration)
is triggered and the Operation Bar leans back. You must
dismount immediately and charge the PTR before proceeding.
• Power Assistant Mode: If a rider is not mounted on the PTR
and lets go of the Operation Bar while in power assistant
mode, an intelligent safety warning will be triggered after
rolling ahead on its own for a certain distance. The PTR will
enter stand-by mode within a few seconds if there is no speed
reduction after the warning. Never let go of the Operation Bar.
• Internal Fault: An intelligent safety warning will be triggered
when the PTR detects any internal fault (such as a battery
fault or balance sensor fault). The rider should immediately
dismount the PTR and contact an authorized service provider.
If you hear an alarm just after power-up, it may be caused
by a low battery charge level. Charge the battery and power-
up again. If you hear the same alarm, contact an authorized
service provider.
If the Ninedroid App is installed on your smart device, you can
use the “Intelligent Diagnostics” function to determine what the
problem is and how to solve it. A specific fault code is shown on the
PTR dashboard and displayed along with the wrench icon.
Figure 17: Pay attention to all Safety Warnings.
Figure 18: Do not let go of the Ninebot.
Figure 19: Fault Indication
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