On Sat, May 23, 2009 at 10:40:35PM +0200, Wojciech Puchar wrote: > > I respectfully disagree. As much as I hate Apple as a company, I > > currently have a MacBook Pro that gets over 4 hours of battery > > life and has a 200+gig HDD in it. > > i wrote "somehow incompatible" :) > > your macbook pro would run even more hours on the same battery with flash > drive.
Generally true, but with exceptions: a 2.5" HDD draws approx. 4 Watts, and you can reduce overall consumption by spinning down when idle. OTOH, a Flash drive doesn't draw that much power when idle or when read, but when writing, it is substantial (and slow). A RAM-based SSD has yet another power profile... > i don't know how much your CPU gets power, and ... how oversized > battery it has And to get ever more OT: my biggest gripe with current laptops and netbooks is that it is usually difficult to find external batteries, that you could either strap on or below the box (in parallel switching) or that you could hot-swap easily without having to shut down. Even a bigger external battery that you could plug into the DC input would be good enough for most uses, but you'll have to DIY, as you won't find an easy on-the-shelf solution in your electronics store. I don't mind if the internal battery lasts only 90-150 minutes, as long as I can easily swap it with the spare batteries or an external battery that I'd carry in my backback. If you need at least 8-10 hours (or even more) of continuous autonomy, that's pretty important, IMHO. -cpghost. -- Cordula's Web. http://www.cordula.ws/ _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"