Submitted by hpjtv on Tue, 2019-09-03 09:37
Hello all, long time since I've posted in here. I have a Model S 85 and a Model X 75D. I've been a Tesla owner 5 years now and this just has me puzzled. In the past 3 weeks, I put on 4000 miles on my 75D. Almost all using Superchargers along the I5 between Vancouver, Canada and Los Angeles. I know that the 75D chargers a lot slower than the Long Range/100D but what I'm seeing is weird. I try and get the battery down to about 0-5% while on a trip before charging. At 150kWh stations, I'd plug in and get 125-130kWh at the start and it will taper down to about 30-40kWh within 3 minutes and just stay there. This is with no one else charging at any of the stations. I would then unplug, go over to the opposite (A/B) charger and would get 125-130kWh again and then it would taper down to around 60-70kWh within 3 minutes and lower (40-50kWh) when I hit 50%. It does this at every charger I go to so I'm constantly moving to get the higher charge rate. If I'm sharing a charger, it will start around 30kWh and work up to 65-70kWh and stay there most of the charging which is normal. Some stations, it will go 125kWh and then drop to 0, then jump back up and then back to 0 a few times and then tell me there's a problem. The chargers I use in Canada start off at 125kWh and then drop to 90kWh most of the charging time until I reach about 70-80%. At 72kWh stations, it will remain around 60-72kWh most of the charging time. So I'm actually getting faster charging times at 72kWh stations as compared to 150kWh stations (even when not sharing).