Hey! Thank you for your reply!
well my solution was heat! my three hypers had enough at 35 Celcius. So I cut off the breaker for the panels cut off the breaker für the supply and separated them from the batteries. Then I went to the celler. I find old 120 cm server fans and I placed them on the Hypers top that way they keep cool!
After letting them cool down, I slowly turned on the power and till today they do what they have to do. Hope that stay that way.
Thank you!