If I am not mistake, NIMH batteries all have appox the same internal resistance and its very low compared to Nicad for example. specifically what kind of load are you draining them at and what is the output voltage of the cells under that load? Once a nimh drops below the rated voltage of 1.2 VDC the charge is nearly gone regardless of load... jco
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Cory Papenfuss Sent: Thursday, January 25, 2007 5:26 PM To: Pentax-Discuss Mail List Subject: RE: about NiMH batteries (was: aliasing/moire) > off brand off shore made rechargable batteries are > infamous for overstating the capacity. The usa FTC > cant go after them I guess or just dont care to. > I think the best way is to test your batteries > in a systematic way but dont forget that most of > them take about 10 cycles or so to get up to speed. > jco > If you'd read what I posted, you'd recall that in at least the case of the cheap batteries I mentioned, they were not inaccurate in their rating. The "mAH" ratings were correct... but at too low a voltage to be considered "non-dead" by the camera. A nice stiff supply (i.e. low internal impedance) is what's required... probably moreso than current longevity. -Cory -- ************************************************************************ * * Cory Papenfuss, Ph.D., PPSEL-IA * * Electrical Engineering * * Virginia Polytechnic Institute and State University * ************************************************************************ * -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
