Comments on: Make a Dynamo to Charge Your Phone https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/ Solar Tutorial and DIY Solar Guides Tue, 06 Aug 2024 18:30:09 +0000 hourly 1 By: Tom Verry https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-109244 Tue, 25 Jun 2019 22:14:42 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-109244 Hoping your are still monitoring this. I want to combine a dynamo hub (Shutter Precision) with your 3.5w panel to charge a power bank. I plan on just soldering a couple cables one from panel and one from dynamo) together to terminate to a micro usb that will plug into the battery. Any issues you can identify? Dynamo hub puts out .35a and approx 5v at 8+mph.

]]> By: Voltaic Systems https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-93945 Fri, 16 Jun 2017 13:14:59 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-93945 In reply to louis.

We no longer have it in our office, but it was something similar to the last stage of cookie dough after all the flour where you can barely get the chocolate chips to mix in with the rest of the batter. Sorry I can’t be more specific.

]]> By: louis https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-93944 Fri, 16 Jun 2017 13:11:51 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-93944 Hi i want to try and make a water mill using this tutorial but i do not know if the current in the river will be enough to turn the motor as you said it is harder to turn then you would think. Do u happen to know how much force is needed to turn it or any other places i could find out.

]]> By: Voltaic Systems https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-93685 Thu, 01 Jun 2017 19:55:32 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-93685 In reply to Mikew.

Hi Mike – something like this could work – https://www.voltaicsystems.com/m3511-splitter

Phil Stearns also wrote this post showing how to orient the diodes if you want to make your own cables – http://blog.voltaicsystems.com/combining-non-matched-power-sources/

]]> By: Mikew https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-93684 Thu, 01 Jun 2017 19:43:38 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-93684 Any ideas how to connect multiple dynamos together to provide a faster charge and at lower speeds

]]> By: s,aiman https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-92165 Fri, 10 Mar 2017 01:52:15 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-92165 if i want to impalement the project with a micro-controller such as PIC or ARM , which area or part that i need to locate?

]]> By: Voltaic Systems https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-90153 Wed, 14 Dec 2016 16:59:03 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-90153 In reply to Pradeeka.

It depends on the phone and the circuit on your buck-boost. When we do direct charging from solar (skipping a battery), different phones behave differently from having power cut in and out. See our post to understand more about the problems of direct charging and the different behavior of several common phones: http://blog.voltaicsystems.com/direct-charging-solar-review/

I would say “probably not that well” with an iPhone, maybe with an Android phone. You’d need to test to confirm.

]]> By: Pradeeka https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-90152 Wed, 14 Dec 2016 16:50:08 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-90152 Without using the v15 USB battery as an intermediate backup storage, Is it possible to use a switching regulator (buck-boost) with the dynamo to step-up/or down and regulate the output and charge a mobile phone?

]]> By: Cheran Ninkai https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-86482 Thu, 15 Sep 2016 14:26:53 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-86482 I got it, i used Hp printer motor. Thanks

]]> By: Russo https://blog.voltaicsystems.com/make-a-dynamo-to-charge-your-phone/#comment-73100 Sun, 23 Aug 2015 01:59:35 +0000 http://80ca4ebf1c.nxcli.io/?p=1683#comment-73100 In reply to Russo.

yup, it works, i just tested with an “usb wall charger” i connected the usb wall charger to the dynamo and then my phone into the charger, perfect.

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