On Wed, Dec 15, 2010 at 12:44 AM, peter green wrote: > RussellMc wrote: > >> On 15 December 2010 18:09, V G wrote: > >> So it's becoming too complicated to use linear regulators and stuff to > >> create a power supply. I've just decided to go ahead and use a switchi= ng > >> supply. > > > Is my technically good 5 cell solution not acceptable? > I haven't followed the whole thread but the big problem I see with 5 > cell soloutions is the pysical and practical side of things. > > From a physical point of view if you use four cells you can get a > readymade holder in a variety of roughly cubiod shapes (personally I > tend to preffer the elongated square style). I don't think i've ever > seen a 5-cell AA holder for sale and if it did i'd guess a single layer > would be the only reasonable option. > > From a practical point of view batteries sold retail seem to come in > packs of 4 and multiples thereof. So a four cell soloution neatly uses > one pack of batteries. A 5 cell soloution uses 1.25 packs... Exactly! --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .