"Polar Vortex" and your battery

"Polar Vortex" and your battery

As a new-ish owner, holy sh*t does that range get swallowed up quickly in the cold temps!

redacted | 18 novembre 2014

Yep. Same as for gas engines, but much more noticeable.

lunknugget | 18 novembre 2014

sure does. welcome to the 'hood

hamer | 18 novembre 2014

Warm up the car and battery while it is still plugged in. Also, the range and wh/mi differential is not all that different once the car and battery are warmed up. If you take it on a long trip (say, several hundred miles) range will be worse but probably not more than 10% worse. If you don't use the heater too liberally.

mrspaghetti | 18 novembre 2014

Seat warmers are much more efficient than warming up the cabin air, fyi. You may still need the regular heater on, but probably much lower.

FelixMendeldog | 18 novembre 2014

Others have discussed at length, I’ll summarize:

• Schedule your charge to finish a little before you depart so you don’t waste electricity warming the battery twice

• Use the phone app to warm the car before you leave (while it is still plugged in!)

• Use more seat-heat, less cabin heat.

Captain_Zap | 18 novembre 2014

Range can come back as the car warms up. Especially if you have a snowflake on your display.

Earl and Nagin ... | 18 novembre 2014

I drove the MS from NE to Rochester, MN last winter during the Polar Vortex. I parked it outside at night in Rochester for the week. When I left it on at a charger overnight and started it warming about 1/2 hour before driving it, there was little range hit. When I didn't leave it plugged in (another MS arrived and was using the charger), it definitely took a range hit.
Keep it plugged in and precondition it before leaving and you'll have no problem. For shorter trips, you won't have any trouble anyway.

redacted | 18 novembre 2014

My Wh/mile for my road trip this summer went around 300 Wh/mile or so when doing 65. With the relative cold of last weekend that was more like 360. That's with the car warmed and the heat fairly low (67), about a 20% increase and that's with the car warmed. I'm attributing it to the denser air (whether that's true or not I don't know) more than just the heat.

This is why one drives an 85, at least in the midwest. And tries not to look at the energy graph.

Brian H | 19 novembre 2014

The denser air is for real; that's what a "polar high" is, and it increases air resistance.