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History Behind the Lawsuit
Porsche is facing a class action lawsuit alleging it intentionally reduced the charging speeds of its Porsche Mobile Charger Plus (PMC+) and Porsche Mobile Charger Connect (PMCC) devices after discovering potential overheating issues.
Filed on September 26, 2025, in the U.S. District Court for the Northern District of Georgia (Atlanta Division), the lawsuit, Herdtner, et al. v. Porsche Cars North America, Inc. claims Porsche issued a software update that cut charging speeds in half, forcing some owners to wait up to 20 hours for a full charge instead of the previously advertised 9.5–10.5 hours.
The chargers were marketed as premium accessories designed to provide faster home charging for the Taycan and E-Hybrid models. However, after overheating complaints and a recall, Porsche allegedly limited charging output to 20 amperes, down from 40 amperes. Plaintiffs argue the update was a downgrade rather than a repair, leaving them with costly chargers that no longer perform as advertised.
Claims Made by the Plaintiffs
Lead plaintiffs Paul Herdtner (2020 Porsche Taycan 4S) and John Holby (2021 Porsche Taycan Turbo) claim they paid thousands for chargers that no longer deliver their promised performance. The lawsuit says Porsche’s marketing highlighted rapid home charging as a key benefit but failed to deliver that experience after the software changes.
According to court filings, Porsche breached its warranties and misled consumers, depriving owners of a major selling point. The inability to quickly charge at home, the suit argues, reduces the usability and enjoyment of Porsche’s EVs and plug-in hybrids.
The plaintiffs seek restoration of full charging capabilities, reimbursement for charger costs, and actual, discretionary, and punitive damages, along with a jury trial to determine liability.
What Porsche Owners Should Do Next
Owners of Porsche Taycan or E-Hybrid models who purchased a PMC+ or PMCC charger and are experiencing slower charging speeds should document performance data, keep receipts, and record dealership communications or software updates. These records may be useful if they qualify to join the class or pursue individual claims.
How Porsche Owners Can Take Back Control
While this class action has been filed, many Porsche owners report similar issues with charging speed reductions and limited resolutions from the automaker. Such cases highlight the importance of protecting consumer rights and holding manufacturers accountable.
If your EV or charger isn’t performing as promised, expert help can make a difference. With extensive experience and proven results, The Lemon Firm is your best bet. With dedicated team members always at your disposal, the package becomes too good to be true. So, if your car is giving you a headache, don’t hesitate to reach out!
Call 833 Lemon Firm and speak with a case analyst today!