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BG353854131 In ohms mode it is selectable, beeper can be enabled or disabled. In diode mode it does not beep.

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Q: Is it possible to use it while charging?

Задавает rafaelsans на 2021-11-11 14:49:19

BG353854131 In principle yes, but it is of no practical use. The compressor's power demand greatly exceeds the small power available through the USB charging socket, so it makes not difference if the pump is connected to USB or not when pumping for a short time.

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Q: can it work directly from a solar panel which has 91 volts on VOC?

Задавает BG141121117 на 2021-05-26 11:30:50

BG353854131 No. It is clearly stated in the specs that the voltage range is 10.8-30V or 20-45V (depending on the model chosen).

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Q: Can anyone tell if there is a C 19 on the board?

Задавает BG123916752 на 2021-02-27 01:28:18

BG353854131 No there isn't, just empty solder pads labeled C19.

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