Linux Laptop

Rainer Peter Feller rainer at
Thu Feb 27 09:11:22 PST 2003

On Thu, 27 Feb 2003, Florian Teply wrote:

> > LiIon and Li Poly are the same basic technology. they can do what you
> > ask.
> >
> > the case is designed for a li-ion pack.
> >
> li-ion is great, it got the most energy inside of the least weight and
> room if i remember correctly. But take care about charging circuitry to
> not burn them...

why nor using LiPoly then we might get weeks of operating  :-)))

> > actually, the ARM uses so little power that with a good size capacitor,
> > or maybe a lithium cell, the CPU and RAM could probably survive a
> > hotswap of the main battery if everything else is sleeping...
> >
> You´re talking about these Gold Cap Capacitors? 1 Farad at 5.5 Volts?
> taking power consumption of ARM processors into account, probably one of
> these Gold Caps could be enough to provide a battery swapping time of
> about thirty minutes when system is sleeping... Should be enough time to
> swap batteries even for blind 130 year old Great-grand-pa ;-))


CUH Rainer Peter Feller

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