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  • 18/01/2017

    Nice, cheap and good DC-DC converter for Li battery. 5V output to USB-connector. With undervoltage protection when battery voltage drops below 2.5V and overcurrent protection.

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  • 24/01/2019

    funziona bene

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  • 21/03/2019

    Good product as described

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  • 06/07/2018

    Hi, I have received it today 07/06/2018 Have a nice day Sincerly yours Bruno MIEZE

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  • 05/07/2018

    Great product!

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  • 21/03/2018

    perfect

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  • TomVIP3
    GB
    18/01/2018

    It does what they claim it does.

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  • 21/10/2017

    Good quality pcb. Great for providing 5V to power USB devices from a 16850 li-ion battery.

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  • 17/05/2017

    Works well, no problems. Good unit for the price

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  • 02/04/2017

    these are very good. I solder a 12v dc barrel socket directly to the board end, and use them to power fones and pi from car battery and screen.

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