High-voltage battery repairs at Porsche - Multi-Stage Service Concept - Article Link

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https://newsroom.porsche.com/en/202...h-voltage-battery-reparation-sales-26854.html

“The total battery capacity is determined by the worst cell – if a cell loses capacity, it limits the range,” says Christian Brügger, Product Engineer in Porsche’s Aftersales Electrics division. “We can detect a defective cell using the diagnostic tester in the workshop. For example, if the voltages don’t match, we know which module needs to be replaced before the repair.”

In order to meet its customers’ interest in the capacity and condition of the high-voltage battery, Porsche made early efforts to enable analysis for the Taycan in workshops using Porsche diagnostic equipment. Details of the readout process were sent out to Porsche Centres at the beginning of March 2022, enabling them to read out the data independently and send it to customers. Porsche also plans to offer an app solution that will enable customers themselves to find out the health status of their vehicle.

Three qualification levels for repair work
Last but not least, work on the Taycan, as the first production vehicle with a system voltage of 800 volts, also requires a clear division of tasks and responsibilities. With this in mind, Porsche has defined three qualification levels: qualified electricians, high-voltage technicians and high-voltage experts. Qualified electricians have a basic qualification that allows them to perform standard repairs to high-voltage vehicles, such as changing the tyres or wiper blades. They must be briefed and supervised by a high-voltage technician when working on a high-voltage vehicle.

High-voltage technicians are trained to work on vehicles that have been disconnected from the voltage supply, and are familiar with classifying and storing lithium batteries. They are also qualified to remove and pack high-voltage batteries classified as ‘Normal’ and ‘Warning’. High-voltage experts have the highest qualification level at a Porsche Centre. They are the only people allowed to perform work inside high-voltage batteries, handle high-voltage batteries with insulation faults and prepare and pack these types of batteries for transportation.
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