

Powerwall 3 + Exp. Pack- not producing enough charge
We got a Powerwall 3 + Extension Pack installed in April this year 2026. At first the Powerwall would get to fully charged to 100% which was great! I didn’t have to rely on the grid at all! I live in Southern California, we get lots of sun. Within the last couple of months I have noticed that the Powerwall does not even get to 50% charged by noon time! And we are in the summer time when we are getting more sun than we were getting in April! I’ve submitted a service ticket with Tesla and the technician came to my house last week and said there was an issue with one of the Powerwalls and I should be good. But I did not see any improvement so I submitted another service ticket with Tesla yesterday, so they are monitoring my Powerwall as of yesterday thru my app, they asked me turn on my Service Mode for them.
I keep my reserve at 5% because my purpose is to not depend on the grid, we have outages once in a blue moon.
My household has not changed, I rarely turn on the AC. We are not home during the day. If it gets too hot I will turn on the AC by about 3pm when we get home.
The solar panels are all good too. In April my solar panels produced 1.0 MWh and in July they produced 1.2 MWh. For one day in April they produced 33.6 kWh, And yesterday they produced 35.0kWh energy.
Has anyone had this issue? I hope Tesla replaces my Powerwalls because there is definitely a problem with my Powerwall 3
The first picture is from today and the 2nd picture is from April, about the same time, noon time, to show you the difference.