DC step-down for USB 60v input

[SportBiker]

I am finding a lot of converters for under 36v but not 48v.

I tried the forum search (not very hard but did look).

Can anyone point me in the right direction for cheep USB supply that can accept 60v input?

Thanks

 

[wturber]

This is the one I'm using. Max input voltage is 60v, though I'm using it on a 36 volt system. It is fully potted.

https://www.amazon.com/gp/product/B0151BF6DI/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

 

[wturber]

Oops. You are looking for 5v. Try this.

https://www.amazon.com/SMAKN%C3%82-Converter-Step-down-supply-module/dp/B00XKKWSES/ref=pd_day0_hl_23_4?_encoding=UTF8&pd_rd_i=B00XKKWSES&pd_rd_r=0b9f8067-acc4-11e8-b369-ffe841fc31b4&pd_rd_w=z3fpW&pd_rd_wg=K626Y&pf_rd_i=desktop-dp-sims&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=6a8492ae-b1a9-47e4-8244-e55b8611820c&pf_rd_r=QFHS7HTVCXR34G046K1P&pf_rd_s=desktop-dp-sims&pf_rd_t=40701&psc=1&refRID=QFHS7HTVCXR34G046K1P

 

[SportBiker]

Thanks.
That seems better than this: https://www.amazon.com/GERI-Converter-Module-8-50V-Output/dp/B00W52N8XW/

I do wonder if the full charge voltage of ~54.6 is an issue for something that claims it can take 50.

 

[dustNbone]

Many "Wall Wart" switching power supplies will work just fine on 50+VDC, no need for anything special. I'd say 80% of the AC USB chargers I've tried have worked perfectly normally on DC. Sometimes you have to try polarity both ways but the ones that have worked have continued to do so without problems.

Just a bit cheaper/more available solution, most people have a collection of these laying around.

FWIW, I have one of these mounted on my bike. Wasn't one I had lying around but it worked on DC and I liked the form factor.

https://www.ncix.com/detail/linke-qualcomm-certified-quick-charge-ba-128564.htm