>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>Sent: 06 October 2005 15:57
>To: Microcontroller discussion list - Public.
>Subject: Re: [EE] Solar cell to replace AAA battery?
>
>
>I was thinkin about using this with one of those small flash 
>based mp3 players. I don't know what kind of current those 
>players need. If I could avoid having a rechargable battery in 
>there, I would. Maybe just put a large capacitor in there instead.

If you mean the small USB pen style MP3 players, then they do take a reasonable amount of current, certainly enough to kill an alkaline AAA in 6-8 hours, probably ~50mA.  That would require a solar panel rather larger than the device itself.

Why are you so dead set against rechargeables?  A capacitor won't be of much use in this application.

Regards

Mike

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