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On Mon, 4 May 1998 10:14:48 -1000, David Ross wrote: >>My personal favorite would be Sealed Lead Acid, but it's obviously too heavy for notebook > > >You can get SLA portable power packs for camcorders which have an automotive cigar lighter socket connectors for a very reasonable price, i.e. $50-60 for a pack that should run a Thinkpad for 6 or 7 hours. If I had an automotive adapter for my TP I'd probably buy one of these just to see how well it works in practice. > And make sure you can get it to the same voltage and ampherage as the ThinkPad AC adapter does. Have you done this before David? Was it hard to make the DC-DC inverter if so? >>I also like NiMH, too. So, what does Lithium Polymer have that Li-Ion doesn't? > >Thinner, lighter, can be twisted into special shapes. I guess that would be good for a bike light I'm trying to make for my bike, for now I'm going to buy a SLA battery that used to be in a UPS. -- Paul Khoury | <pkhoury@loop.com> | Sent from my ThinkPad 701CS Proudly running OS/2 Warp 3/4, Slackware Linux, and Sun Solaris 2.4