Semi 110v charging?

[Iluvpcs]

Just Kidding! I’m guessing if it was offered to keep it “topped off” at home for private owner, adding 1KW/hour to an empty 1MW battery (with 25% loss) only short 5-6 weeks to fully recharge.

More serious note: if this becomes an RV chassis in a few years, my calc says empty to full on a nema 14-50 would be around 4-5 days. Hoping with a smaller chassis for RV could get better miles per KW , if today the semi is roughly 1 mile to 2kw at full load. Hopefully 1 mile to 1KW (or even better) for a lighter RV in the 15-20k lbs range. Could come with smaller batteries in 400-600 KW range.

 

[oneday]

The average RV doesn’t travel very many miles a year. 110v charging would be more than enough to cover “average” miles driven, if only it worked that way.

On another note, some of the new 50 stall superchargers Tesla is installing TODAY are capable of delivering over 2500kw at once. So that’s a full battery in about 24 minutes.

 

[nwdiver]

Just Kidding! I’m guessing if it was offered to keep it “topped off” at home for private owner, adding 1KW/hour to an empty 1MW battery (with 25% loss) only short 5-6 weeks to fully recharge.

You beat me to it. And it's 1kW to an empty 1MWh battery. The 'h' is important. Power vs Energy confuses A LOT of people...

 

[ThisIsTrue]

My guess: 110v charging wouldn't be able to keep up with "phantom drain".

 

[david_42]

Although some articles are saying fast charging of the semis would be impossible, Proterra already has a solution:
Proterra | Battery Charging Systems for Electric Buses

Note: I know the buses batteries are only in the 135kWh range, but if they can fully charge that in 5 minutes, no reason a Tesla semi can't be charged in 20.