Vampire drain - what's the latest battery % loss people are getting?

[CD4Complex]

I see we found the guy without humor. It’s a joke. I use Celsius and metric at work everyday.

that decides it, I’m switching to KELVIN!

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[ajbrutman]

what's your VIN range?

Under 1500

 

[gj_washington]

My battery charge level dropped from 70 % to 7% over 20 days sitting in the garage, while I am traveling. Hope there’s no long term effects from sitting for days at low charge.

 

[Marchin_MTB]

I see a huge difference if it above or below freezing. Above freezing it’s like 1% or less a day. Below it’s more like 3-4% per day.

I have been collecting some data and find the same exact result. The drain values have a lot of scatter and don’t seem to be a continuous function of temperature. Rather, there is a large change in the statistics between 30-40F where drain goes from 1% to about 3.5%.

 

[dleepnw]

My battery charge level dropped from 70 % to 7% over 20 days sitting in the garage, while I am traveling. Hope there’s no long term effects from sitting for days at low charge.

i dont think its good for the battery to be at a low state of charge for a long period. even worse if it gets to zero. if you can have someone plug it in before you get back, that might be a good idea.

 

[Boudro]

I just did 13 hours in camp mode energy use selected as off in my garage. Cabin temp is 41. Instead of miles lost I charged to 70% then let it sit and just recharged back to 70%. It took 2.6 kwh to get back to 70%. So that’s my loss for 13 hours camp mode choosing energy use off.

*edit the truck charge session says 1.7 battery .2 battery and cabin temps .1 accessories. The 2.6 came from JuiceNet charger.

 

[strykerwsu]

Just got back from trip. 5 days and nights. Truck in garage at about 50 to 55 degrees. Left at 50% = 162 miles. Returned 44% = 141 miles. So "only" about a 1% per day is improved after updates, but losing 20 miles for nothing still sucks.

Also I deleted key from phone to save my phone battery on trip so not sure if that helped as well.

 

[yizzung]

Sorry for the long post. I have been giving this a lot of thought. There are dozens of posts about drain and the numbers are literally all over the map. There are a couple of problems that make this puzzle tricky to pin down.

While we can each try to control for a variables or two (e.g. drain % and VIN) there are seemingly many, many more. The internets is great at anecdotal observation and really bad at multivariate analysis...

Probably not an exhaustive list but:

1. Indoor or outdoor or covered parking
2. Outdoor temps
3. Gear guard on/off
4. Number of people/cars/dogs nearby that trigger alerts
5. PAAK on/off
6. Bluetooth phone connectivity paired or not
7. Wifi connected or not
8. Truck "mode" (e.g. camping, shipping, whatever)
9. Number of times manually waking the truck to measure the charge %
10. SW build version (e.g. pre frunk fix or post frunk fix)
11. "User error" -- did you leave something on (interior light) or open (frunk/gear tunnel door ajar)
12. VIN
13. Plugged into charger or not -- even if I'm not actively charging, my truck lights up the charging port, using some power, when connected to the wall
14. Not really a variable but the measurement here can be pretty suspect. I've noticed that the % in the app doesn't always match the % in the truck.
15. Sometimes people also report based on miles but the miles converted to % is also kind of a suspect measurement. It's probably close enough but maybe not 100% reliable as a metric.
16. I have also, randomly, seen the percentage fluctuate between recordings -- meaning that it's unexpectedly read higher occasionally from one reading to the next

There are probably other considerations, but nobody on here will likely be able to isolate these conditions in the way that Rivian engineering can (and hopefully is actively doing). Their data access to thousands of vehicles helped them identify and fix the phantom frunk drain issue.

I'm hoping they see enough of these 3-4% (to 12%!) vampire drain reports and either (a) continue to identify/fix one-off culprits or (b) introduce "drain minimizer mode" so that people who really really care can flip a switch and take it to zero.

I have started to wonder if Rivian knows about the drain but have accepted a certain amount in exchange for (a) the obvious stuff 12V stuff we're fixated on but perhaps also (b) some under-the-hood stuff (like thermal battery management) that isn't as easy to fix.

I'm no electrical engineer but if say hypothetically they could take vampire drain to zero but the cost is that it takes the truck several minutes to be ready to drive when awaking from that kind of slumber. What that be acceptable to everyone? What if it took ten minutes? 20 minutes?

I had pretty bad, consistent drain in the first few months (3-4% per day). I was also stuck charging on a 110v outlet, so it felt doubly terrible. One of the recent OTA updates (mostly) fixed my issue overnight.

I currently leave the truck outdoors, in the winter (regularly below freezing). I don't use PAAK. I don't obsessively check (and wake) the truck to see where the charge is at. And I now see about 1-2% at the very most over 24 hours.

The best test for me was the airport. I left it in Reno, outside, with temps in the teens, gear guard left ON (because, if you're going to have gear guard, isn't that when you want to leave it on?) And after 4-5 days out of town, I saw less than a 1% per day drop. I did check it on it once daily over the phone but I now wonder if it would have been even better if I'd ignored it entirely.

My (totally unscientific, untrustworthy, random internet guy) observation was that maybe temps and gear guard matter much less than we all suspected and the real culprit(s) is/are something like Bluetooth / nearby iPhone / nearby wifi connectivity / being left plugged into a charger while not actually charging / obsessive vampire % checking.

YMMV!

 

[EVnewb]

Sorry for the long post. I have been giving this a lot of thought. There are dozens of posts about drain and the numbers are literally all over the map. There are a couple of problems that make this puzzle tricky to pin down.

While we can each try to control for a variables or two (e.g. drain % and VIN) there are seemingly many, many more. The internets is great at anecdotal observation and really bad at multivariate analysis...

Probably not an exhaustive list but:

1. Indoor or outdoor or covered parking
2. Outdoor temps
3. Gear guard on/off
4. Number of people/cars/dogs nearby that trigger alerts
5. PAAK on/off
6. Bluetooth phone connectivity paired or not
7. Wifi connected or not
8. Truck "mode" (e.g. camping, shipping, whatever)
9. Number of times manually waking the truck to measure the charge %
10. SW build version (e.g. pre frunk fix or post frunk fix)
11. "User error" -- did you leave something on (interior light) or open (frunk/gear tunnel door ajar)
12. VIN
13. Plugged into charger or not -- even if I'm not actively charging, my truck lights up the charging port, using some power, when connected to the wall
14. Not really a variable but the measurement here can be pretty suspect. I've noticed that the % in the app doesn't always match the % in the truck.
15. Sometimes people also report based on miles but the miles converted to % is also kind of a suspect measurement. It's probably close enough but maybe not 100% reliable as a metric.
16. I have also, randomly, seen the percentage fluctuate between recordings -- meaning that it's unexpectedly read higher occasionally from one reading to the next

There are probably other considerations, but nobody on here will likely be able to isolate these conditions in the way that Rivian engineering can (and hopefully is actively doing). Their data access to thousands of vehicles helped them identify and fix the phantom frunk drain issue.

I'm hoping they see enough of these 3-4% (to 12%!) vampire drain reports and either (a) continue to identify/fix one-off culprits or (b) introduce "drain minimizer mode" so that people who really really care can flip a switch and take it to zero.

I have started to wonder if Rivian knows about the drain but have accepted a certain amount in exchange for (a) the obvious stuff 12V stuff we're fixated on but perhaps also (b) some under-the-hood stuff (like thermal battery management) that isn't as easy to fix.

I'm no electrical engineer but if say hypothetically they could take vampire drain to zero but the cost is that it takes the truck several minutes to be ready to drive when awaking from that kind of slumber. What that be acceptable to everyone? What if it took ten minutes? 20 minutes?

I had pretty bad, consistent drain in the first few months (3-4% per day). I was also stuck charging on a 110v outlet, so it felt doubly terrible. One of the recent OTA updates (mostly) fixed my issue overnight.

I currently leave the truck outdoors, in the winter (regularly below freezing). I don't use PAAK. I don't obsessively check (and wake) the truck to see where the charge is at. And I now see about 1-2% at the very most over 24 hours.

The best test for me was the airport. I left it in Reno, outside, with temps in the teens, gear guard left ON (because, if you're going to have gear guard, isn't that when you want to leave it on?) And after 4-5 days out of town, I saw less than a 1% per day drop. I did check it on it once daily over the phone but I now wonder if it would have been even better if I'd ignored it entirely.

My (totally unscientific, untrustworthy, random internet guy) observation was that maybe temps and gear guard matter much less than we all suspected and the real culprit(s) is/are something like Bluetooth / nearby iPhone / nearby wifi connectivity / being left plugged into a charger while not actually charging / obsessive vampire % checking.

YMMV!

I think the problem most people have is comparing the vampire drain on the Rivians to other more established EVs on the market with little to no vampire drain. Rivian is a new company making new high tech products and I feel like they should have done more homework and researched how other manufacturers do it, so to speak, while they were engineering them. There are a lot of things/processes going on in the truck that need to be updated and streamlined, and I’m confident they will be over time with those OTA updates. I feel like Rivian is just playing it safe and taking their time polishing their new “wheel inventions” i.e BMS, PAAK, HVAC, charging, suspension, navigation, GG, Driver+ etc…

Also, I’m thinking the incremental increases in battery percentage people are seeing after the truck has been sitting is probably temperature related. I’ve seen the battery percentage go up by a point sometimes after the day warms up.

Thank you to all the owners taking the time to perform these tests and reporting the results! Greatly appreciated!

 

[MotorCityR1S]

We left our R1S outside in northern MI for the long weekend ~72 hours. 18-45 degrees with gear guard on and the vehicle waking a dozen times or so. We lost 9%.

 

[NY_Rob]

Bet a pair of these (one on each 12V batt) would 100% stop vampire drain... if I had a garage (where I could leave the frunk hood up) I might be tempted to try it. It would be like having two dead 12v batts. Not suggesting anyone actually try it!!

 

[SANZC02]

I have not noticed much drain on my R1S, I am mostly on 2023.2.3, one module failed to update but still shows the latest release.

The vehicle does not have gear guard on, it is in my garage not plugged in, temps last night dropped to high 40s outside, garage probably dropped to high 50’s. Took a screen shot last night at 8:56 PM, another one this morning at 8:51 AM, appears to have lost 1 mile of range. App shows AT wheels/Tires but it is actually on 22 Dark.

 

[140 degrees]

I've had my R1T for almost two weeks and I have been tracking overnight losses. I have an early 2023 (PN0006XX), and ambient temperatures have been in the 50's and 60's.

Pre-SW Update: 4 nights, 47 total hours, 3% total loss, 10 miles estimated range lost
After Update: 5 nights, 84 total hours, 1% total loss, 0 total miles estimated range loss

The 0 miles lost is because I had one overnight of 0 loss, 2 nights where I gained a mile and 2 nights where I lost a mile. That might mean that the losses are less significant than the measurement error.

We have freezing temperatures forecast for the next few days. I'll report back if I notice anything interesting. I have been storing the fob and keeping my phone at the opposite end of the house. When the temperature comes back up, I'll bring them closer to the truck overnight.

 

[frostbit3]

I went on a 5 day trip and left the Rivian in the garage with average temps probably around 55-60F. Lost on average about 1.5-2% battery/day. Left at 74% and came back to it at 65%. I checked daily with the Rivian app to see what the percentage was at so that likely woke it up and drained it faster. It's set to proximity disabled at home as well as gear guard. Running 2023.02.03

 

[madgrey]

Someone suggested using the Trip function for this, which I think is the best way to compare results. I'm resetting "Trip A" when I park in the garage (maintains 50-55F) and then next time I check, I can see directly the energy usage. This one shown averages to 1.7KWh usage per day.

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