This is a great thread with great minds contributing. It still goes over my head in spots. I would like to try the mod in Post 22 above. I want to use it to drive an MG-T2 with 2 li-ions or 6 Ni-Mh’s. I’m not following the bit about adding a resister with a switch to cut it (the resistor) out at lower battery voltages. Would the resister part be necessary for my app which has fairly limited difference between supply voltage and Vf?
Secondly, wouldn’t the 2 volt dropout from the 78L05 serve as a low voltage cut off? 7 volts comes out to 3.5v for each cell.
Edit: I mistakenly posted here. Here is the original posting I was thinking about. I will post there. Please disregard this post as it seems the following thread is the more appropriate place for this question: