> > I think the characteristics of LiIon have nothing to do with this problem= , > since there very likely is a switching power supply and charge controller > between the raw USB power input and the internal batteries of the phone. > So > as long as you can produce a voltage within the normal USB range, the pho= ne > should take care of the rest. > As far as I understood solarwind does not want to put a dc-dc in his application, and that's where all the problems occur. In other words he cannot guarantee stable USB voltage level, otherwise it was too easy with a similar way as MintyBoost. Tamas > > > ******************************************************************** > Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products > (978) 742-9014. Gold level PIC consultants since 2000. > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 int main() { char *a,*s,*q; printf(s=3D"int main() { char *a,*s,*q; printf(s=3D%s%s%s, q=3D%s%s%s%s,s,q,q,a=3D%s%s%s%s,q,q,q,a,a,q); }", q=3D"\"",s,q,q,a=3D"\\",q,q,q,a,a,q); } --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .