I have one of those Model S 85D 2015 with the software reduced supercharging/regen. Previously below 12C, regen was reduced, but I would see the regen restore itself to full ability after a few minutes of driving. Some of us have noticed the regen reduction more pronounced for longer periods post update.
So my concern is yesterday, car reads ambient temperature of 20C, SOC is about 50 percent, displayed 50 percent reduction in regen, and does not restore until 15 minutes of city driving home from work. I can't say I have ever seen this reduction at such a warm ambient temperature.
Make me wonder why the pack can't actively heat itself to restore regen, I would gladly give up a few kms of range to prioritize driving performance.
Co-owners of this model will sympathise having to drive with the energy screen on just to be aware of regen reduction.
So my concern is yesterday, car reads ambient temperature of 20C, SOC is about 50 percent, displayed 50 percent reduction in regen, and does not restore until 15 minutes of city driving home from work. I can't say I have ever seen this reduction at such a warm ambient temperature.
Make me wonder why the pack can't actively heat itself to restore regen, I would gladly give up a few kms of range to prioritize driving performance.
Co-owners of this model will sympathise having to drive with the energy screen on just to be aware of regen reduction.