View Single Post
Ironman88 Ironman88 is offline
Registered
 
Join Date: Nov 2021
Posts: 121
Hopefully you'll do ok over time with this battery.

If one were to explore the Rennlist 9Y0 Cayenne forum and do a search on the LiFePO4 Lithium battery - you would come up with quite an extensive litany of issues and woes associated with it.

This battery came as standard equipment from Porsche on the 2019 - 2023 Cayennes. If the charge level of the battery drops to a certain level, the BMS disables it - preventing it from being charged, or even brought back to life. Porsche regards these batteries in this state as being DOA / junk and replaces them. Replacement cost is quite high from Porsche - approximately $2k.

Most 9Y0 owners who had experienced this problem are very frustrated with the battery. An aftermarket conversion has been made commercially available - some owners use that kit to convert over to an AGM battery.

For me, I would never opt to go with one of these batteries.
Old 08-23-2025, 08:54 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)