Powerwall 2 not charging after 86%

Sounds like this issue that I just finished reading about:

Give Tesla a call.

 

My PW2 is not charging past 54%. I haven’t called TESLA yet but was curious if ur problem was solved. Also how do I cut power coming from the grid so I can manually get my PW charged to 100%? Tia

 

What mode do you have your Powerwalls set to?

 

Self powered with reserve setting at 20%. I’ve even tried to increase reserve % to 60 and it just won’t go past 54%.

 

I had this issue when my system was first installed. It turned out that the installer (3rd party, not Tesla) didn't turn on the breaker to one of the Powerwalls. So, one was at 100% and one was at 12% leading to an average reading of 56%. I noticed that the breaker was off and simply turned it on. The system resumed charging and went to 100% after a day or so in Backup mode. The installer told me to leave it in Backup mode until they were fully charged. At the beginning of March, that took nearly 3 days. I'm not saying yours has the same issue, but this can happen because Tesla doesn't expose information about individual Powerwall units in a multi-unit system.

 

Just got off the phone with Tesla and the rep had me cycle the PW2's and the breakers. After doing that, she noticed low voltage on the 1 PW2. She escalated the issue to Tier 2 and I have to wait for a phone call in the next 2-3 days. She thinks that maybe a firmware update could fix the issue, otherwise a tech will come out and inspect.

 

Update 2/19/2019:

I had a tech come out and said that one of my PW2’s may need to be replaced which could take 3-4 months. He proceeded to check the wiring and discovered that one of the PW2’s wasn’t connected. It seems the original installer neglected to daisy chain the 2 PW’s together thus leaving only one to charge. He wired them correctly and all worked perfect. Both PW’s charged to 100% the following day. Glad it was a simple fix and a replacement wasn’t needed.

 

who was your installer?

 

Tesla was the installer