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Re: Lizzy Power Budgets

does that include the draw from the hmd and twiddler?

----------
> From: Josh Weaver <>
> To: 
> Cc: 
> Subject: Re: Lizzy Power Budgets 
> Date: Wednesday, November 04, 1998 2:40 PM
> 
> 
>  (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
> 
> 
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