MS 75D Charging

[Viro]

Getting ready to travel from NW Indiana to Punta Gorda Florida in my MS 75D and have a question.

I don't supercharge a lot but something I noticed is the SC in South Bend charges much faster at a low batter level than the SC in Michigan City.

I normally SC around 5-7% when I need to. For this trip I am planning on using ABRP and have my SOC at the waypoints set to 10%. I'm concerned that some SC are slower than others. I thought this only affected Model 3 owners but am now trying to figure out what % of charge is ideal for the fastest charging at each charger.

Can anyone help me with this please?

 

[glide]

Lowest SOC you can arrive with.

And keep your fingers crossed that they don’t throttle you and that all the SC’s are working at their peak.

I don’t even bother using my P85D for road trips anymore because of the throttling.

 

[F@kegman]

I've driven my S 75D all over the South with little to no issues at SCs. Yes had to move a few times because of a bad stall, but never had to wait for a stall. Even using the urban SC which only put out 72Kw but don't share power with other stalls and are usually found in parking garages are nice. I use plugshare app and read the check ins before a trip to make sure the planned stops are all good. I actually think the SC charge profile on the 75 is lower at under 10% so not sure I agree with hitting there as low as possible. You can look it up there are lots of graphs showing the charging speeds.

 

[ucmndd]

I actually think the SC charge profile on the 75 is lower at under 10% so not sure I agree with hitting there as low as possible. You can look it up there are lots of graphs showing the charging speeds.

While I agree that max charging rate on the 75 seems to kick in at about 20%, I think generally speaking it’s still favorable to arrive/charge with as low SoC as you can tolerate.

For example take a hypothetical charging stop where you need to add 60% to your battery to make it to the next stop/destination.

Charging from 10-70% and arriving at the next charging stop with 10% left will almost certainly be faster than charging 20-80% so you arrive at the next stop with 20% remaining, because while charging from 10-20% is “slower”, it’s not nearly as slow as 70-80%.