Rockbox mail archive
Subject: RE: FM Recorder won't turn on / USB left connected overnight
From: Arturo Gonzalez (agon_at_email.arizona.edu)
I was under the impression that the batteris on the Recorder couldn't be
removed. Is it as easy as unscrewing the 4 screws around the blue
When you say "limited power supply" what exactly did you use? I am away
from all of my tools living abroad, and have limited electrical
knowledge/experience, and so I'm a little lost and need a little bit
From: owner-rockbox_at_cool.haxx.se [mailto:owner-rockbox_at_cool.haxx.se] On
Behalf Of Neon John
Sent: Tuesday, October 21, 2003 4:53 AM
Subject: Re: FM Recorder won't turn on / USB left connected overnight
You'll need at least 6 volts to commence a charge. 1 amp will do it.
The easiest way to bootstrap an FMR after flattening the battery is to
take the battery out and charge it externally. I just had to do this on
a friend's FMR so that he could get his stuff off before returning it on
I simply hooked both batteries in parallel by taping copper wire across
each end and then hooking the battery to a current limited power supply.
I set the current to one amp and allowed it to charge for an hour. That
charges the battery about half way, more than enough to get the thing
running again so that the internal charger can take over.
FWIW, this FMR that I had to work on had its battery charging circuit
fail. That's why it's going back. That's the last one of the several I
caused to be bought several months ago. We all now have Recorders and
could not be happier.
John De Armond
Cleveland, Occupied TN
On Mon, 20 Oct 2003 13:51:18 +0200, "Arturo Gonzalez"
>Hello to everyone.
>My girlfriend left the rockbox connected via USB to her laptop
>overnight, and predictably, the unit has fully drained batteries.
>I've read the archives and found a similar incident, but didn't see in
>the various threads how this was eventually resolved. (1) Do i charge
>the unit using the charger (I have the original US charger, but am
>living in Spain, where the charger won't work (I need one that accepts
>EU voltage)--do i buy the one Archos Tech support is selling or can i
>get one with the same specs?: Power Specifications : Input : 100-240Vac
> Output : 5 Volts 1.6 A
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