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Re: Lizzy Power Budgets

From: (Eric LaForest)
Date: Wed, 4 Nov 1998 18:15:59 -0500 (EST)

>
>
> (I'm answering for Thad, as he's running around the country at the
>moment)
>
> Thad and I are both running one of the SuperMOPS boards (586dx133),
>with 2.1 Gig HDD, PE and twiddler. Running full out (ie, compiling
>kernel), the system draws about an amp, and is running at 5 volts from
>a DC-to-DC converter. When idle, consumption drops to about half an amp.
> Using two of the LI+ NP-950s (~32 W/hr each), we're getting about 12-15
>hours on day-to-day useage, which means we're running a lot closer to
>5 watts than 2.5. Hmmm, some of this is probably due to lossage in the 
>power converter, because those are only about 80-85% efficient. The newer
>ones look substantially better. 
> Regardless, battery life of 12 hours or more is really nice...
>
>-Josh

I'm currently using lead-acid gel cells.
I have access to LiIon batteries, but it seems to me they are quite
finicky to recharge, as opposed to lead-acids which are very tolerant.

How do you charge LiIons?...and how do you tell when they are about to die
(discharged)?

--
Eric LaForest      Nascent Linux Borg     -www.ncf.carleton.ca/~di458-
#define Hacker !(Cracker)  //FYI: http://sagan.earthspace.net/~esr/
Breaking into computers does not make one a hacker, for the same reasons
that hotwiring cars does not make one a mechanic... paraphr. from ESR

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