[photo-3d] Re: Ni-MH for Viewers

[wes@xxxxxxx]

--- In photo-3d@xxxx, "Dr. George A. Themelis" <drt-3d@xxxx> wrote:
> Yes, as Brian mentioned, the battery cells in stereo
> viewers are connected in series.  The voltages add up
> (1.5 + 1.5 = 3V) but the same (high) current goes through
> the system.  So if you are testing individual cells
> you should try higher currents (minimum of 0.5A).
> 
> George

If I were to test with a drain of .5 amp for an individual cell, that 
would be a drain of a full amp for two connected in series (by Ohm's 
law the currents also ad, or conversely, the current drain will be 
halved with only one cell in test).  I think that's getting a bit too 
hefty for most applications.  But what's handy about the chart is 
that you can extrapolate a fairly good idea of what to expect by just 
telescoping the chart out or compressing it depending on your current 
needs.  Of course, this can't be taken too far or the internal 
resistance of the cell will manifest itself more obviously in the 
form of a lower service voltage, and such.  But, thanks for the 
suggestion.

Wes