I have a question regarding the battery parameters, which are set to 4100 (mV) and 3500. Is 3500 just the lower level of the indicator, or is it where the camera will shutdown? I am also curious why 3500 was chosen. For LiPo batteries, usually 2.9V is where you want to start recharging it, so I would think that 3000, or 3100 should be the lower level of the indicator. The way it is set now, my battery is never fully charged, and hits 3500 after a few dozen pictures. (It's a new SD850). I have order a couple of new batteries to see if it is just my battery.
That said, I love CHDK!!