> >>I've implemented reflex charging on our charger, with the addition of a >>FET and resistor for the pulse discharge. > >Which is "your charger"? Embedded charger in a portable printer. 2800mAH NIMH pack at 7.2V nominal. Existing design does a 90 min charge managed by an AVR Tiny-26 using the 64 MHz PWM as a controlled constant current source buck regulator. High rate, topping charge, low rate, trickle, and conditioning phases, thermal and voltage detection. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics