On Tue, Dec 15, 2009 at 02:31:11PM -0800, Dwight Hubbard wrote: > Since we have some hardware hackers on the list. > > I saw this article about the price difference between laptop and lawn tool > lion > batteries. Which got me thinking, how difficult would it be to build a cheap > garden tool battery into a laptop power cable.
It'd be nice to see the article. A couple remarks off the top of my head: * My laptop takes 19V, most power tool batteries are less than that. Which means a DC-DC converter with 5-15% power loss. Add to that the loss in the laptop's internal power supply. * Hopefully you can find a good way to hook up to the battery w/o damaging the charging contacts. Otherwise, you're buying/making a charger as well. All that said, power-tool batteries can be a pretty good deal, especially when you already have the tools and charger. _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
