Thanks CG. By "2 years", I just meant "sometime in the future". I believe the life is not infinite and therefore the battery will eventually need to be replaced. Either I can wait for the plane to drop out of the sky to know this, or I need a better way. I do not like the idea of running to failure. The FAQ was useful but also leaves me wondering if even the $150 Hobbico option (which is more than I want to spend) is the right answer given the FAQ concerns with "calibration".

Now the link was good in that I now have a lower-cost option for some 1000mAh NiCd Rx batteries which is way better price than TH.

Missileman: I was thinking that a peak charger was better than a timed one?

So that leaves the question, what is the best way to determine when to replace?