0°F 110V charging test

[jakef801]

We took then snowmobiles out today. I drove from SLC, UT to Evanston, WY very early this a.m. and it was -11F when I rolled into the EA station at Smith's grocery in Evanston. Truck was at 90% departing SLC and was about 35% when I got to Evanston. I was towing two, heavy 800cc sleds with the aeros off. The truck charged to 92% remarkably fast (less than 45 mins). Incredible day in the mountains - Not a cloud in the sky all day and tons of fresh powder. Truck was at 22% when I got home and just plugged in the included 110V charger - 0F outside. It will probably drop to -15F tonight. I will report charging status tomorrow.

Sponsored

 

[jakef801]

I've lost a mile of range since starting charging at 110V three hours ago.

 

[Donald Stanfield]

I see these temperature numbers and I remember all the years I lived in WI and it makes me throw up in my mouth a little bit. I'm glad I live someplace that doesn't try to kill me with arctic weather anymore.

 

[jakef801]

Update. Now 5F outside and I've lost 4 miles of range while charging at 110V over last 10 or so hours. Guess I'll unplug the co$ksucker. Gotta roll into town (a mile away) and hope the ChargePoint is working. Twiddle my "dongle" for an hour or two if and while it's charging. Can't take the snowmobiles back up to the mountains with 38 miles range. Fuck. Was hoping for 100 miles this a.m. and to be able to head straight for the hills.

Obvious consensus: The 110V charging range loss in low temps is definitely real. Irony 101.

To Rivian: You've got to fix and solve this riddle. Thank you in advance.

 

[Riviot]

I see these temperature numbers and I remember all the years I lived in WI and it makes me throw up in my mouth a little bit. I'm glad I live someplace that doesn't try to kill me with arctic weather anymore.

 

[jakef801]

Another update from yesterday. It got colder inside the cab when I switched to "recirculate" inside air. Significantly colder.

 

[brancky3]

Was hoping for 100 miles this a.m. and to be able to head straight for the hills.

Obvious consensus: The 110V charging range loss in low temps is definitely real. Irony 101.

To Rivian: You've got to fix and solve this riddle. Thank you in advance.

I get the frustration with the drain issues, especially at low temperatures, but you're not going to get more than 2 miles per hour on 110v in the best case scenario. Even a 32amp 240v charger is only going to get you ~13 miles / hour.

 

[jakef801]

I get the frustration with the drain issues, especially at low temperatures, but you're not going to get more than 2 miles per hour on 110v in the best case scenario. Even a 32amp 240v charger is only going to get you ~13 miles / hour.

Understood. However, in summer, I would gain range on the 110V. It was nice to have it plugged in while I wasn't using it and actually see the gain when I went to drive it. 24hrs = 48 miles is about what I'd get. With these freezing temps, it's much better to not have it plugged in at all. I have the Rivian wall charger at my place in SLC and it's solid, always 11kwh/hr. But I'm up at my place in Garden City, UT. There are now 2 ChargePoint locations here now (latest one just opened), but the one I use is at the grocery store / Ace Hardware spot - so at least I can kill time there browsing and shopping.

Now I've lost 12 miles of range since last night. Unplugging portable and packing up until summer or, preferably, Rivian does an update that makes it usable in winter. Even 1 mile per hour. At least don't let it cause drain while it's plugged in. Duh... I would have definitely been better off today if I'd left it sitting, unplugged.

 

[emoore]

Understood. However, in summer, I would gain range on the 110V. It was nice to have it plugged in while I wasn't using it and actually see the gain when I went to drive it. 24hrs = 48 miles is about what I'd get. With these freezing temps, it's much better to not have it plugged in at all.

Now I've lost 12 miles of range since last night. Unplugging portable and packing up until summer or, preferably, Rivian does an update that makes it usable in winter. Even 1 mile per hour. At least don't let it cause drain while it's plugged in. Duh... I would have definitely been better off today if I'd left it sitting, unplugged.

Are you sure you wouldn’t lose range unplugged?

 

[jakef801]

Are you sure you wouldn’t lose range unplugged?

Maybe a mile or 3 based on the absolutely frigid temps I'm SLC a week or so ago (-10F). I was doing a test on having the frunk trim out to see if was a vampire drain culprit. (I haven't been getting vampire drain anywhere near what some people are posting). Regardless, unplugged, with trim out, I was getting a bit of drain....1 - 3 miles overnight in -10F. Never lost 12 miles overnight like with the 110V portable plugged in.

 

[Jack Smoke]

I bet the battery conditioning was being used to warm the battery for charging.

 

[jakef801]

I bet the battery conditioning was being used to warm the battery for charging.

For 12+ hours??

 

[Jack Smoke]

For 12+ hours??

idk, just a thought, if the truck “knows” it’s suppose to be charging and is trying to keep the battery in the proper temp range to charge, it’s possible any energy delivered is just keeping the battery warm. I have no idea what the charging parameters are. 110 is very slow under ideal conditions.

Also, it could be the truck re-calculating the range estimate based on battery temps. I’ve had my range go down by double the estimated usage in a 20 minute drive only to go back up when put back in a heated garage.

 

[Madsen203]

Is .8-1.2kwh really require battery conditioning? Over 7000 cells, seems unnecessary.

 

[MrMetlHed]

I live in a condo and only have access at home to level 1 (plenty of free level 2s nearby though.) Can anyone that understands batteries and charging better explain if spending energy on conditioning the battery is actually necessary for such low power going in? I'll be slightly annoyed if I have to hit up the local level 2s because the Phoenix heat won't let me charge on our 110v without constant draw. I only just got my truck, so I haven't even given the outlet a go yet. No commute, so it's fine if it only gives a few miles, but losing miles would be a bummer.

Sponsored