Mach-Lee
Well-Known Member
- First Name
- Lee
- Joined
- Jul 16, 2021
- Threads
- 203
- Messages
- 7,729
- Reaction score
- 15,301
- Location
- Wisconsin
- Vehicles
- 2022 Mach-E Premium AWD
- Occupation
- Sci/Eng
The L2 would have taken about 30 minutes to heat the battery at 20ºF. Heating the battery also increases the capacity so I think the charging difference would have been a wash. The L1 departure time limits the heater to only 1 kW, so the battery would not have drained further. The only thing that drains the battery is the remote start at the end (maybe by 1% to warm up).I have never taken the time to figure out how to set a departure time, perhaps I should.
I didn't bother this time because I was not sure if the 32A at 208 volt would be better served putting energy into the battery or warming the battery? It worked out to about 5% per hour. If an hour was spent warming the battery that would have made a difference in the percentage reached.
I feel like if I had set a departure time the battery would not have made it to 93% at pickup and would have instead been around 89%.
Wouldn't a departure time on L1 again drain the battery as the heater draws 4000-5000 watts and L1 only delivers 1440 watts?
Would the pack warming be a net positive effect on the battery range despite the reduced starting percentage?
In the end you would have started with about 3% less, but preheating the battery and cabin would have given you 10-15% more range, so a net positive.
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