Ecoflow DELTA 2 from a short video, where there was a malfunction of the USB, car port, overload 50 hz, and it did not count the battery charge. It turned out to be repaired :)
You can contact me here:
Telegram: amp_service
Instagram: amp_service_vin
Viber: by phone number
Phone: +38(063)597-57-07, but it's better to write