Selecting charging destination

[pitbull-ny]

We're driving from Cape Cod to NYC. The on board trip planner usually advises recharge at Waterford Commons. Is there a way to select a different charging location and for the car to prepare itself to be recharged at the selected location?

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[Craigins]

Just navigate directly to the charger you want, instead of doing the entire trip.

On a side note, is there a specific reason you want to precondition the battery? In my experience it wastes more time to precondition than you would "save" by the slightly higher charger rate for a very small time window.

I believe the only real reason they added it was to show a nice charging curve (look at the pretty 200kW for 4 minutes!), since that was one of the pain points of the early releases.

 

[Thedude]

Just navigate directly to the charger you want, instead of doing the entire trip.

On a side note, is there a specific reason you want to precondition the battery? In my experience it wastes more time to precondition than you would "save" by the slightly higher charger rate for a very small time window.

I believe the only real reason they added it was to show a nice charging curve (look at the pretty 200kW for 4 minutes!), since that was one of the pain points of the early releases.

How does it waste time to precondition? The truck does it while you are driving to the charger, it doesn’t take any extra time.

 

[Craigins]

How does it waste time to precondition? The truck does it while you are driving to the charger, it doesn’t take any extra time.

preconditioning tanks your efficiency. It wastes so much energy to heat/cool the pack to the right temperature, that it just isn't worth it for that small window of "fast" charging at the beginning of DCFC. And if you are stuck on 150kW chargers, it is 100% worthless, you are throwing energy away by preconditioning. The wasted time is the time it takes to put the wasted electricity back into your battery.

 

[pitbull-ny]

preconditioning tanks your efficiency. It wastes so much energy to heat/cool the pack to the right temperature, that it just isn't worth it for that small window of "fast" charging at the beginning of DCFC. And if you are stuck on 150kW chargers, it is 100% worthless, you are throwing energy away by preconditioning. The wasted time is the time it takes to put the wasted electricity back into your battery.

Then why does the car do it?

 

[Dark-Fx]

preconditioning tanks your efficiency. It wastes so much energy to heat/cool the pack to the right temperature, that it just isn't worth it for that small window of "fast" charging at the beginning of DCFC. And if you are stuck on 150kW chargers, it is 100% worthless, you are throwing energy away by preconditioning. The wasted time is the time it takes to put the wasted electricity back into your battery.

It's all time in the faster part of the curve though. It's definitely important in the winter time, probably less so in the summer unless you live somewhere it's over 100 regularly.

From experience though in the Bolt, it'd still be under optimal temps even with the outdoor temps in the 60 degree range, and this limited charging speed below maximum for the entire charge since they only prime the battery once plugged in, and only to a limit that doesn't allow the Bolt to max out on a DC charger (Oh did you not realize that the vehicle still uses a significant amount of energy once plugged in only to heat the battery up?)

 

[Electrified Outdoors]

I think they meant it wastes energy. Rivian and other do it because some folks don't care they just want the quickest possible charging.

I would only precondition if temps were under 32F. Otherwise, the energy consumption winds up costing more and providing very little benefit to charging.

I use the ABRP app, then I set the charger address in the NAV. It doesn't precondition in that scenario and ABRP allows me to tweak settings to my preferences. The NAV acts as a double check when I put in the charger address which verifies I have enough to get to the next charger.

It is my hope that all ABRP features will make their way into Rivian NAV as well as the option to turn off precondition.

 

[Craigins]

Then why does the car do it?

PR. Look back at out of spec Kyle's testing of the charging curve. It gets negative press since the charging curve doesn't spend a lot of time at 200+ kW.

 

[WSea]

If you are concerned about energy use then the R1 is the wrong vehicle.
on a recent road trip with multiple dcfc charging legs with Temps in the 90s I noticed the vehicle preconditions much longer prior to the second charging stop. Theory is the battery never cooled enough from first charging session. Had great charging speeds and probably wouldn’t have if I didn’t precondition.

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