"The fact remains the picture you posted shows a normal temination on temperature"
I guess I should have been clearer: the figure 2 that I posted above is a good example of why simple temp measurement is not good for NI-MH: the cell temp rises to 41C. It's from a Linear-Tech data sheet pimping one of their products. If you don't mind running the cells above 40C at end of charge it's great.... now ask a battery maker how long the cells last if you cook them that hot on every charge cycle.