Do you have a link to the battery problem cause and workaround please? I'm on the various Taycan forums and haven't seen one. There's a rumor that the software update currently being rolled out addresses the issue, but my dealer doesn't know, because it's not in the update release notes. I'm having the update done tomorrow. It includes a separate software update for the mobile charger that comes with the car.
The problem was first reported just over a year ago, hence my comment. I'm a Porsche fan and really like the Taycan, but IMHO Porsche is behind the leading edge on in-car software, especially with updates. My Taycan was at the dealer for two days for the last update, needing several tries, they need it for two days for this upcoming update, and OTA map updates for my GT3RS were down for six months, with Porsche Support asking me to wait a little longer a few times while they sorted out their servers.
I'm not trying to be inflammatory and believe that Porsche is one of the finest auto brands for quality and service. But they need to be called out when they fail to resolve an issue, even if it affects only some owners.