I have been using 2100 maHr batteries im an 8200 MkII for over 2 years
with no problems.

I usually let the batteries run down, then charge overnight. I make sure
the unit is sitting upright to give maximum possible cooling to the
battery case.

Walt

Bill Amann Jr wrote:

I have a 8200 MKII it was made to charge Ni-Cad batteries, question is can I
charge Nimh batteries? I thought I read somewhere maybe here that if I
charge Nimh it would over heat and warp the case or something. I would be
charging 2000 + mah batteries. Thanks