BrianM3
New Member
View attachment 432418
It was stall 3b, the car ramped up to 98kW at 13% for about 5 seconds then throttled down to about 68kW and tapered from there.
The entire 1000 mile trip from Socal to Fremont and back I was experiencing slower and slower sessions (20-30 min more than estimated charge time with all unpaired stalls.)
I had this problem after owning my LR RWD M3 for a few months. It suddenly only supercharged at half the normal rate ( maxing out in the mid 60s), only 2 days after getting full 120kw (at the time) on the same chargers on my initial trip up. I took it into service and complained about it and they told me it was normal and offered no advice. After refusing to accept that this was normal, I talked to the battery specialist at the service center and gained no useful fixes. They only offered that there are lots of variables that can lead to limiting the charge rate (health of battery, health of charger, outside temp, etc). I believe it went away after I charged up to 100% (fully, let it trickle charge until it completely stops). I don't know for sure because I don't supercharge that frequently but that is my best guess. It was in this condition for a good 2 months, very frustrating. They really need to give better battery health feedback when something is not operating at 100%.