ILT warns that DJI drones with failing batteries may fall from the sky

Nov

21

2018

Human Environment and Transport Inspectorate warns drone pilots with certain models of manufacturer DJI that these defective batteries can have and therefore fall out of the sky. According to DJI, a firmware update resolves the problems.

The warning from the Human Environment and Transport Inspectorate concerns DJI drones with batteries of type TB50 or TB55. Among others, the DJI Matrice 200 series and the DJI Inspire 2 have these. The ILT advises owners not to use their drones with these batteries anymore or to keep them at least fifty meters away from people, objects and buildings.

The inspection service has personally informed the twenty Dutch owners of the industrial DJI Matrice 200 and on 1 November the ILT sent more than fifteen hundred e-mails to owners of potentially relevant drones. That list was based on the aircraft register.

With the safety warning, the inspection follows the British aviation authority. In early November, it issued a ban on flying over people with drones with the relevant, defective batteries. This happened after incidents where the batteries no longer supplied the drones, although the status report indicated that there was still sufficient capacity.

DJI is aware of the problems and has solved the problems via a firmware update. ILT is based on the British incidents and does not appear to have tested the new firmware. The firmware update offers some guarantees according to the manufacturer. This way it checks the temperature of the battery during take-off. This may not be below 15 degrees Celsius, because otherwise the voltage may be lower. The new firmware also checks the charging status and if it deviates from what it should be, the drone can not take off or, with a difference of five percent or more, it lands automatically.

DJI Matrice 200

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