ron_b
Well-Known Member
- First Name
- Ron
- Joined
- Dec 30, 2019
- Threads
- 327
- Messages
- 1,587
- Reaction score
- 1,677
- Location
- SF Bay Area, USA
- Vehicles
- 2020 Taycan 4S
Yes @Gubbjaevel and @DragonRR Porsche used to have a 12% buffer split between the top and bottom when the car first came out in September and I recall watching the charging video by Alex Dykes for TFL Cars with great interest as he had it charging in less than 1 hour from 1% to 100%. That was up till December I believe, then Porsche pushed a software change to reduce the reservation dramatically, I assume motivated by more knowledge of the battery behavior and a desire for more range. I believe the majority of the remaining reservation is on the bottom with only a small top reservation. you will see the charge rate drop dramatically as it approaches 100% but I believe it is still around 10 kilowatts at 99%. This is much higher than Tesla at that SoC which truly has I believe 0 top buffer.Gents,
The amount of capacity is displayed on "technical specifications" on Porsche configurator:
So yeah, charge to 100% and you still have 10%-ish left for battery safety.
Still, Porsche recommends (as per the manual) to charge to 85% for daily use.
They also state that charging to 100% before a roadtrip is not an issue.
Bottom line the usable battery is now 89 to 90kWh so the reservation is only 5% now and I suspect 4% on the bottom and 1% on top. I've heard and other videos that there is no region on breaking when charged to 100%, this is quite visible/testable by looking at the power meter.
Bottom, bottom line is that I completely agree with @svp6 that you should set a profile to charge only to 85% if you are interested in maximizing the life and performance of your battery then use that direct charging button to go to 100% when you are planning a road trip. I do the same thing with my Chevy Bolt and it is no significant trouble. If the car is leased and you don't care then I understand you may always want full range available; however, 85% range should still be well over 200mi at highway speeds anyway.