Those high end things, has some special "tech" to dig out/up performance, for when it is new. They paid for "dig", you paid them for result of "dig". I must say, this type "dig" circle makes more waste in the world, finally. fortunately and recently, I made some progress in battery charging. I progressed in -dV method and already achieved very satisfied results, after I found a better algorithm. Before, I was totally dislike -dV. I really have one word to LM, MAX battery charging IC, useless things that had eaten so much of my time: really carelessly devoloped and carelessly about result. I believe I said so because their employee been paid too high and I have been paid too low. ----- Original Message ----- From: "David Van Horn" To: "Microcontroller discussion list - Public." ; "Morgan Olsson" Sent: Thursday, October 27, 2005 1:41 PM Subject: RE: [EE] Charging NiMH > > Yes, but it's a matter of how hot. The Ni-Cad chemistry is what's > > called endothermic and the Ni-MH is what's called exothermic > > I've found that the reputable cells like Panasonic and Sanyo, have very > sharp thermal excursions at end of charge, where the cheap Chinese cells > are much more linear. > > > > > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist