Trip Planning guidance

[shassett]

New GT owner (with 21" wheels) embarking on first road trip from Houston to Austin (about 190 miles) this weekend. Plan on leaving Houston with the GT charged to 95%. With limited local driving so far, we are seeing less than 3 mi/kWh albeit in hot weather with AC working hard. While confident we can make it to our destination, there is limited charging in the area we will be staying (outside of Austin), we will be limited to using the mobile charger overnight (110 connection - car outside).

Planning to stop at an Electrify America on the way (after about 100 miles) and topping off - hoping the site will have working chargers and not a long wait.

Couple of questions - (1)what can I expect from the mobile charger (110 plug) overnight? 20-30 miles?
(2)What's the battery % level we should strive for before getting nervous (10/15/20%)?
(3)Is is concerning that we are getting under 3/kWh in local driving (not driving fast, mostly non-highway, sprinkled in highway but traffic limited speeds)?
(4)Lastly, we will be parked on a slope overnight - does the Park/Hold acts as a parking brake?

Thanks for the help

 

[Adnillien]

New GT owner (with 21" wheels) embarking on first road trip from Houston to Austin (about 190 miles) this weekend. Plan on leaving Houston with the GT charged to 95%. With limited local driving so far, we are seeing less than 3 mi/kWh albeit in hot weather with AC working hard. While confident we can make it to our destination, there is limited charging in the area we will be staying (outside of Austin), we will be limited to using the mobile charger overnight (110 connection - car outside).

Planning to stop at an Electrify America on the way (after about 100 miles) and topping off - hoping the site will have working chargers and not a long wait.

Couple of questions - (1)what can I expect from the mobile charger (110 plug) overnight? 20-30 miles?
(2)What's the battery % level we should strive for before getting nervous (10/15/20%)?
(3)Is is concerning that we are getting under 3/kWh in local driving (not driving fast, mostly non-highway, sprinkled in highway but traffic limited speeds)?
(4)Lastly, we will be parked on a slope overnight - does the Park/Hold acts as a parking brake?

Thanks for the help

Austin is hot and the battery cooling may use more power than 110V can provide. Don't count on getting anything from a 110V plug in the summer.

Top off at EA on you way home, not on you way to Austin. After only 100 miles your battery will still have a high SOC and hence the charge speed will not be great.

If you are reading the efficiency from "Since Last charge" those nubmers include vampire drain. The trip number since getting your car is more accurate. Keep the speed down (or plan to charge) as speed is the biggest hit to efficiency.