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4.96 out of 5
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  • 07/10/2017

    Para seus DIY usando 18650 é o que há de melhor, confiável, nao aquece, muito bem acabado, respeitando a qualidade da GeekCreit. Recomendo muito

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  • 17/07/2017

    Me llegaron los modulos y ahora voy a poder terminar 4 proyectos que tenia detenidos. En mi caso yo compre quince modulos.

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  • 20/09/2016

    I received the product and test it, and it's great! I was build an Lithium USB Battery Charger.

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  • 13/09/2015

    Those 5 boards are handy, although one came with a broken inductor (must have been before shipping since it was well packed with other stuff). I chose these ones because their voltage can be changed by replacing one or two resistors (see LTC3426 datasheet for that) They can do 2.5 to 5.5V range, and are a complement to SKU086291 that can do up to 12v, but at the expense of a higher min input voltage. They also have an Enable pin (/shdn) to control the booster using pin 4 of the LTC3426 chip. Be aware that it does not on/off the output voltage : when the booster is off, the output voltage is the same as the input voltage, minus the drop from the diode.

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  • 07/07/2016

    What to do with broken laptop batteries?....this little dc/dc converter is the perfect option to build your own power bank and recycle these batteries

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  • 29/02/2016

    This has the LTC3426 or similar controller. Almost looks like the reference design for it, except the output inductor may be undersized. It works though. USB connector can be removed to reduce weight and size. Output voltage can be changed by referring to the controller datasheet.

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  • 01/07/2020

    it works well

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  • 01/08/2019

    Good product and work as promised

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  • 02/07/2019

    Teşekkürler Ürünler Zamanında ve Eksiksiz ulaştı

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  • 22/04/2019

    Arrived in good condition, didn't use them yet.

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