PWs lose power overnight

[getakey]

I'm noticing that my PWs (I have 3) lose 2-3% overnight. I've had them 2 years now and do not remember that happening before. So they power house during peak and stop at my reserve setting. Then in the morning I notice the SOC is 2 to 3% below Reserve.

 

[Chud]

Seems common. Some info in this older thread

Powerwall 2 Vampire Drain

I shouldn't be surprised but here I am, surprised. I've had my 3 powerwall 2 units up and running for 5 days. I finally got around to writing some scripts to query the backup gateway APIs and log the state of charge, load, solar, and grid power figures periodically and noticed a couple things...

teslamotorsclub.com

 

[nyprepper]

it's normal. mine behave the same way. it fluctuates a little up and down with each software update.

 

[jjrandorin]

Mine doe this too. I believe they always did it, actually, its just now shown in the app as in the morning my powerwalls are showing in the app as 1-2 % below my set reserve, where it never showed that in the app before. Like I said, I think it was doing it before, just not showing it in the app.

 

[getakey]

thanks guys

 

[sorka]

Mine have done this since new.

 

[jhn_]

Mine do this as well since we’ve had them.

Also a larger percentage is lost overnight when colder. During our New England summer we may loose 1% per night, but now when it is 20F at night (with Powerwalls in an unheated but attached garage so maybe 32F in there) they loose 2-3% per night.