Received quickly. Good price and good quality. Thank you.
The booster must operate at 10VDC in input, but actually it do it at 11,1..11,7 VDC. The applied load is 13,5V 6,1A (i.e. 82.4 W), it is a car refrigerator Alpicool. A week ago the booster could operate at 11,1 V but today it works at 11,7 V only and higher at the same load 82.4W. So I can not use the booster with the acid accumulator to supply the car refrigerator because my DELTA DT 12100 battery can be dischared downto 9.6 V but boster stops operation at 11,6V. I've made a video, you can watch it in Youtube, find by "32810602279".
I opened the disput and won. I would not have any complaints If the seller corrected the description of the device. Why does he say that it can operates at 10,0 VDC ? It is not true.