DJI has elaborated further on its investigation into reports that a small number of TB50 and TB55 batteries have shown incorrect power levels that have led to loss of power mid-flight.
The company said that flight safety and product reliability are “our top priorities”, and it is advising customers to fly with caution when operating their drones equipped with these batteries.
In addition, DJI is working on a firmware update that will provide improvements to flight safety for the affected drones.
DJI said it strongly advises customers to strictly follow regulations that are designed to mitigate the risk of a power failure, including the UK Civil Aviation Authority’s offset requirements from people and property.
The company said it is urgently working on a mitigation plan to allow customers to confidently use the batteries again as soon as possible. This includes a firmware update for the affected batteries which will provide improvements to flight safety and be made available in the coming weeks.
In the meantime, customers are advised to check the voltage of their TB50 or TB55 batteries before and during the flight.
TB55 batteries are used to power the Matrice 200 series of professional drones, while TB50 batteries are used to power the Matrice 200 series and Inspire 2 drones.
A small number of customers have reported mid-air power failures while using TB55 batteries, which share similar power management firmware with the TB50.
DJI said it is working with its battery supplier, which developed the power management algorithm for those batteries, to determine the underlying cause of those failures and develop a solution for them.
The company added that it is reviewing all recent reports of power problems that may be connected to the issue.