> hey, this looks very nice! > looks like you are an expert in accessing pc ports. > ...but there are negative things about it, from user's view: > it makes not a lot of sense, to run a desktop pc all the time, Well, I have my home desktop PC on all the time without even the reason of charging batteries. I think the point is that it's a neat thing. From a cost perspective, I have a Triton battery charger/discharger that will properly charge NiCads, NiMHs, SLAs, and Lithiums. The cost for this with a 12 V battery supply was under $200. If you really want to go low-ball, you can build a charger yourself from a Maxim chip and a power supply. -- D. Jay Newman ! jay@sprucegrove.com ! Xander: Giles, don't make cave-slayer unhappy. http://enerd.ws/robots/ ! -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics