I can't charge my Zendure. When I received it was discharged. First charge was to 90%, after 2-3 months it was without any load and was discharged to 1%. Why it happened? After that I tried to charge it, it consumed 300 Wt for 1 hour, and still showed 1%. After few resets, firmware updetes, connecting 1 kWt of load it started charging, but with very strange behavior. Power consumption started from 800 Wt and decreasing in time to 300. Then I stopped AC input, and moved it to another room but after that it stop charging at all! I can't understand an algorithm of AC charge, it should be just plug in and charge, but it doesn't work as expected. I'm really disappointed.