Powerwall Charging Issue

[Tim-in-CA]

I am finding that when the SOC of my 2x PWs is low (less than 40% or so) any brief amount of charge, will cause the charge level to jump. You can see that in 15 min of grid charging (~3.3kW), that the SOC reported percent jumped from 10% to 56%, afterwards the charge rate then will appear normal. Has anyone else seen this? Could I be having a PW issue with potential damaged cells? This has been happening for the past few weeks as I’ve had to run my AC more, resulting in the PWs getting to a lower SOC.

 

[jjrandorin]

I havent experienced that, nor do I remember anyone posting anything like that here. With that being said, I am not trying to say that my memory is infallible or anything.

If that was my system, I would definitely call tesla and ask them to look into it / explain it to me, however. If you find out anything, let us know.

 

[BGbreeder]

From 600 miles away, that doesn't look right, and looks an awful lot like a bad segment of cells from here.

As @jjrandorin wrote, call Tesla. You have an issue. Please keep us posted.

All the best,

BG

 

[Tim-in-CA]

Chatted with support ... they told me that they need to escalate to Tier 2 support before anything could be done and to determine next steps... will take 15 to 20 business days for them to get back to me! Typical piss-poor level of Tesla support.

 

[Tim-in-CA]

Well, my issues continue to get more strange. I now see that PV is being pushed to both PW and grid while in self powered mode, reserve set to 20% and not enabled VPP. Yesterday I found that the PW would only charge to 94% even if I set reserve to 100% and that after sundown, I had a constant draw from the grid that started at .3 and ended at .5kW by sunrise even though my PW were above 50% (20% reserve). If I go off grid, all excess PV will be directed to PW charging and at night, PW will supply all power to the home. I just powered off everything, but issue still remains. Anyone else experiencing this odd behavior? My FW is 22.18.3 21c0ad81 … Thanks!

 

[Tim-in-CA]

Bump. Anyone else seeing this? My max PW charge keeps getting lower and lower. Now down to 89%. I left the system in off grid mode and the system switched back to on grid when the PWs got to 34% with very low late night load (no AC).