Wow, that's ridiculous! Are you sure? There's no way it should need to transmit for four hours - what could they even be sending that takes that long? Sounds like a full dump of all of memory, or something.

 

That isn't happening in my unit, when locking the car, after 3-10 minutes of charging the 12V battery, the HV battery is completely disconnected, the relay clearly disengages and from there the car only works with the 12V, which can't deliver 1kWh for that kind of pattern you're describing.



In fact, the car will charge the 12V battery each 24h for 15 minutes, that's the only "parasite" consumption.



When the car is doing that the dashboard LED blinks in green.

 

How are you determining this? I've seen very little data use when the car is connected to my home network. I didn't activate the car's hot spot. I've also not seen any significant parasitic energy consumption after turning the car off.

 

You won't see any transmission on your local network connection. It transmits over the cellular network. I check the range every night before the green light starts blinking. I then check the range when the green light stops blinking 4 - 5 hours later. Every time the range has DECREASED 3 -4 miles. When I do this, it triggers another blinking green light (I have the range from the last reading), so when it stops blinking again 4 - 5 hours later, the range has DECREASED another 3 - 4 miles. THAT is HOW I am measuring this!

 

Yesterday my Nissan App on iphone quit giving Battery % data.It read Blank --% I went out and checked car 80% all good came back on 4 hrs later.

 

I had that issue too but it seems to work today so I assume server issue.

 

How are you determining this? I've seen very little data use when the car is connected to my home network. I didn't activate the car's hot spot. I've also not seen any significant parasitic energy consumption after turning the car off.

I'm curious as well where OP is getting his data from. The only significant energy consumption I've ever seen with my Ariya when it's off is maybe a 1% loss in charge over a 12-24 hour period during our typically hellish Arizona summer when the cooling system is cycling frequently to keep the battery at a stable temp - that's a perfectly understandable situation though for long-term battery health. I've never seen any other unexplained charge losses whether I'm regularly using the car or I'm out of town on a trip and left it garaged for weeks at a time - and when I'm away I still periodically pop into the app to check on the car so I'd have noticed if it was losing charge.

I had that issue too but it seems to work today so I assume server issue.

Same for me yesterday. Figured it was a server issue as well since the car was charging normally according to my charger and the car's status light, and my internet and all my other apps were functioning like usual. Totally unrelated to what the OP is talking about.

 

The green light is an OVERLOADED indicator. This means the indicator is alerting MULTIPLE processes. When it is blinking green once per second it is either charging the 12v battery OR transmitting data to Nissan servers. When it is blinking green once per 2 seconds it is indicating you have a scheduled charging time set. When it is blinking blue, it is a variable rate (slower rate when nearing full charge) showing that the Lithium battery is being charged. Using one indicator for this many indications is a poor design.

 

Wow, I wish I had your Aryia! My previous 2019 leaf did not lose a single mile when I wasn't driving it either.
I wonder if they have the ability to read some log files that would illuminate what is going on. Why aren't these
log files (if they exist) transmitted to Nissan so that they can read them and notify me of a problem and bring it
in to be fixed without me having to ask?

 

The estimated range is just the estimate, which is going to change based on temperature. Are you looking at the percentage?

 

Percentage and range dropped every time. Also, on several range checks, it was warmer on the subsequent measurements, with no range increase.
Must be I just got a lemon here that talks too much to Nissan servers.

 

Seems like a pretty easy theory for us others to test. Just note the charge %, unplug, then do 3 communications spread over the next 12 hours to see if it will really keep the car awake, and then check the % charge after.

 

Ok, I ran a quick test, where I started the Ariya at 10:30am, turned on the radio, etc., and then turned it off. I noted the power level. The green dash light was blinking every 2 seconds after that.
I then returned at 1:25pm and powered it on again, played with the UI, noted the charge level, turned it off, and left it.
Then I returned again at 5:00pm (6.5 hours after the initial reading) and turned it on.

Result: Zero measured change in charge level or guess-o-meter range after 6.5 hours.

 

I would still suspect charging of the 12v. I would put it on a charger and when fully charged see if you experience the same drop.

 

It would be good to track down what's really draining that much power on your car. Anything about your settings that might explain it?

 

Percentage and range dropped every time. Also, on several range checks, it was warmer on the subsequent measurements, with no range increase.
Must be I just got a lemon here that talks too much to Nissan servers.

it’s possible. I’ve had no issues with phantom battery drain and when i let the car sit for days, the % and range stay the same

 

This would be easy to verify. Just put your clamp-on ammeter on one of the 12V battery cables after shutdown and observe the current.