This morning, I did my 5 battery use on my Ryobi 14" saw. Overall, I am satisfied, but, well you knew there would be a but. Twice now I have had the saw quit after cutting for maybe 20 minutes. The display on the battery is indicating "battery overheated". After removing the battery from the saw, the overall temp of the battery pack does not seem that warm, how ever, the bottom of the battery does seem quite warm. This is the area where the control circuit is. Here is a cut from a Youtube video of a 2.5AH 40V battery showing the control board.
View attachment 808476
I have just got a new 40V 4Ah battery for the saw. Now I have two of them. I sent a note to Ryobi asking if the "hot battery" thing is a battery fault. Doesn't seem that the battery should shut down that way.
Richard