AVR-Chat

> Digi-Key lists D as 6500 mah
> 
> If you use a 4 D size batteries you can get over 4 volts 


Please note that rechargable D batteries might be C batteries in 
larger containers and selling for a large premium above rechargable C 
batteries.  This kind of nonsense was typical with NiCads.  It may be 
different with LiIon: It may not.  Check the amp Hour ratings of both 
sizes. If they're nearly the same, then this Mickey-Mouse game 
continues on.  Real D's should have at least 50% more AmpHr's than C 
size batteries.