Hi Powell,

My nimh charger does have a thermistor probe. I had taped it to the cells when I charged them. Also I had taped the allen wrenches when I had disconnected the battery from the circuit board. This was a very good tip. Unfortunately the display does not power up when it is connected to the battery. I think we have our answer of what is wrong. Do you know what i can test to find out the bad component? Another bit of information is that the battery drains very fast when it is connected to the cicuit board.