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Rockbox mail archiveSubject: Re: V1R running on USB power possible.Re: V1R running on USB power possible.
From: Ronald Teune <rtwolf_at_gmx.net>
Date: Thu, 02 Sep 2004 16:25:35 +0200 Can't remember when, why or were, but I read part of the USB spec, 1 or 2 days ago, and it said that the voltage from usb has to be 4.5 V or higher, and the max current is 500mA. Also, for self-powered hubs it must be at least 100mA. Well, that's what I remember. So if you have bad luck, it isnt gonna work at all... And, if your batteries die in one hour even with charger connected, I think you should consider buying new batteries (or is this normal? My v1 rec stayed on for about one hour too, without charger) Anyway, good luck :) Ronald On Thu, 2 Sep 2004 11:49:40 +0100, Stuart Tedford <stuart.tedford_at_piresearch.co.uk> wrote: > I'm getting annoyed with only being able to connect my V1Recorder to my > PC > via USB for an hour or so before the batteries go flat. It just doesn't > give me enough time to do the things I want to, even on USB2. (eg, > defragment, copy loads of files, etc). I have an 80G disk in it. > > So I'm thinking, why can't I connect the USB 5v to the disk via a diode > or > something. If I use a shotky diode I could deliver about 4.7 volts to > the > disk. I guess the main problem is the batteries which are also connected > directly to the disk. So maybe 4.7 volts via a diode and totally dead > batteries would be a problem, but one I could try to avoid by being > aware of > it. > > Has anyone else tried doing this, or thought about it? > > Stu. > _______________________________________________ > http://cool.haxx.se/mailman/listinfo/rockbox _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2004-09-02 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |