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  • 24/11/2021

    It was broken upon delivery. Poorly packed without any packing material under a heavier package (Epever mppt solar charger). So a coil had broken during an unavoidable handling of the package.

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  • 05/10/2021

    Good product, but cannot deliver charging current of 5A, unless there is proper heatsink on the two diodes and the two mosfets. This may also be due to RCS being bigger than 0.04Ω. In any case the existing heatsink is not correctly glued underneath the components, as it touches only partially some of the heated parts. Even worse, the metal heatsink touches the pins of some other components and there is danger of shorts and damage. Furthermore, in my unit, the dual led is soldered the other way around, and as a result, when it charges a battery, the blue led is on, and when the battery gets full, the red led comes on. Nevertheless, it is a good mppt charger. I attach the Charging Profile and its Diagram, taken from CN3722 datasheet.

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  • 25/02/2021

    muy bien,perfecto

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  • 08/08/2019

    посылка пришла в срок, качество проверить пока не могу выломаны конденсаторы (фото прилагаю)

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  • 28/03/2019

    PCB looks very clean! Nice solder joints and no lose parts.

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  • 31/05/2020

    Excellent MPPT battery charger.

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  • 10/04/2020

    performance/price on very good level.

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  • 28/01/2019

    It is working good.

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  • 13/11/2019

    good

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  • 03/10/2019

    já está funcionando 👍

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