Hi, I have these 2x units. 1 is a US3000 and the other is a US 3000C. Both spent their 4 years of life on a Growatt. They are both swelling and it feels like a shame to pay to recycle them. The BMW must at least still be good for something, or are they really now just trash? They still turn on provide power, but casing is bending from the pressure. I have replaced them already. I have emailed a few places and no one does repacks. So what do I do with them?