What is the max safe temperature for a nimh battery???

[Motoman]

Gallagher:
I know what you mean about measuring the temperature of reflective surfaces, but trust me it wasn't as shiny as it looks in the picture after it overheated. It does have a heatshrink covering on the cells but they are not the labeled kind. Also, the error increases as you move further away from the surface, and as you can see in the picture I had the temp gun touching it. My experience with the error in reading reflective surfaces has been that the temp gun actually reads less than the real temperature and not the other way. So, the cell had to be at least 300 maybe even a little more especially because I took that reading after I came inside my house about 3 or 4 minutes after I stopped running the truck.

dirt101:
I also noticed that a properly sized lipo is less susceptible to overheating. I would rather spend a little more for a lipo than buy another NiXX. There's a lot of people that think that NiXX are still cheaper, but if you compare the price of a decent lipo to that of a good NiXX it's really not a big difference.

Does anyone know at what temperature smoke starts to come out of the vents of the cell?? The bottom line here I think is that the capacity of the cells was way too low and therefore the discharge rate was also too low.