Real vs. Nominal Prime Battery Capacity

I wonder if heating as well as cooling preconditioning from the grid is possible,with the Prime?

 

The Prime has a heat pump (gas injected). It will preheat down to a certain temperature. This is unlike the PiP which only has an A/C compressor.


iPhone ?

 

I believe preheat from grid (while still plugged in) will be available. I would have sworn seeing it mentioned somewhere.

 

I know about the advantages of the heat pump, but wonder if you can precondition the car while plugged in and fully charged and not diminish the battery's level.

 

Yes. Just remember, ALL preconditioning is done through the battery. This way you can precondition with or without a plug. If you have an EVSE plugged in, it must be an L2 (240V) to keep up with the battery drain by the climate control system. If its an L1 (110V) EVSE plugged in you will drain the battery faster than can be replenished from the grid and the L1 will, of course, take longer to recharge what the climate control system took to precondition the car.


iPhone ?

 

A heat pump is just an air conditioner that can run in reverse. It would be odd if the Prime couldn't preheat* while being able to precool.

*Heat pumps are limited by how much heat is available outside. I would expect there being an extreme low outside temperature at which the Prime's simply won't be able to adequately heat the cabin.

 

I've seen that number posted as 10°F, at which point you need the losses from the ICE to heat.

 

Source?
The Prime charger is rated 3.3kW which, to my quick calculation, will charge at about 16 amps if allowed to by the EVSE, current which I assume is more than what the preconditioning requires.

 

3.3kW at 240V.

 

And 3.3 at 220V (Europe) which is 15 amps...don't know the current rating at 110-120V but surely it will be 15A, probably even higher, so higher than the preconditioner draw.

 

PiP. I've done preconditioning with both my L1 and L2 EVSE plugged in. The L1 EVSE (110V) does not keep up up with the battery drain from the climate control. It stayed on (charging) long after the preconditioning was done, about 45 minutes. The L2 EVSE (240V) barely kept up with the A/C and in some instances stayed on about 5 minutes longer to finish recharging the battery. But you are correct, the 3.3kWh charger on the Prime combined with a more efficient heat pump should be covered when using the L2 EVSE. The L1 EVSE cannot supply 3.3kWh, more like 1.6kWh.


Unsupervised!

 

So, it was stated...statements can change...

 

I did not say it can, but I assume it will be higher than 1.6 you mention. Taking the PiP as a reference, L2 current is <10A and L1 is 12-13A? more than half the power. Charging times hint the same.

 

I really appreciate sticking to the embargo by all who know

 

At 110-120V, it will lower than 15 amps in the US. The majority of available outlets at a home are 15 amp max.

 

I am speaking of what the charger is rated for not what the wall outlet is rated for. These are two completely different things.
If the line can only take 15A max then the EVSE should be programmed the this level thus limiting the charging current to less than the charger rating.

 

No. The recharge times listed by Toyota for an L1 EVSE (the one supplied for the USA market) is about 3 hours on the PiP. 1.5 hours if you are using an L2 EVSE. The Prime will take 5.5 hours using an L1 EVSE and 2.5 hours on an L2 EVSE according to Toyota.

Also I was being generous, most of the L1 EVSE power reported by most of those on PriusChat were about 1.3 kWh to recharge. When I pushed the Power button on the PiP when I was using an L1 EVSE, the car reported it was filling at about 1 kWh.


Unsupervised!

 

You are confusing between power (kW) and energy (kWh).

What I said... 1.3 is more than half of 2.2.