At your own risk..BECAUSE!! I found this circuit on the internet. However the internet's didn't have 9v (represented by the voltmeter), only 8.4v then 9.6v so I chose 9.6v and I was only able to get as close as possible to the 6.8ohm resistor for 200mAh, while my battery is 170mAh, with two 3.2ohm. It recomends15.6v as the lowest input range for 9.6v and thus because I am working with a Energizer 9v 170mAh, I am only applying 15v. I'm using a 220uf 25v instead of 220uf 35v, a 1N4007 instead of 1N4001, and 2N2222 instead of BD 135. I ignored resistor tolerances. Anyway here is the link: http://www.circuitdiagram.org/nicd-nimh-battery-charger-circuit.html
-nforystek
