AC> Smart charger could be designed to evaluate dV/dT ie the time 
 AC> rate of voltage rise and compare this with the terminal volts 
 AC> at that moment.
  
 > Shoot,  I guess I'm just going to have to take one of the 
 > computers around here and couple it to some sort of interface 
 > that'll log both the terminal voltage and the terminal current, 
 >  if I can figure out an easy way to accomplish that...   
 JD> Radio Shack has a DVM with a computer interface. I bought one 
 JD> of the earlier models, and it came with a BASIC program, both 
 JD> compiled and in source code version so you can re-write it to 
 JD> do whatever you want. 
Well,  I both have a lot of spare computer power around here (something like 
20 or so CP/M boxes of one sort or another plus a bunch of xt's,  etc.) and 
no money to spend on that RS meter...
I think it's time to do some analog interfacing,  anyhow.
 JD> There's a cable between the meter and serial port, and it 
 JD> should work with almost anything. One of these days, I'm gonna 
 JD> lash it up to a Model 100 RS laptop just for grins. 
I almost got a model 100,  but ended up with a PX-8 instead!  Lots more in 
that little box.  
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