Hi - I recently found out that li-ions can be overly discharged to the point where they get damaged. Does anybody know at what point this normally happens at? I was told 2.7V, but then when I've been looking for a 3 cell under-voltage protection chip I stumbled upon the max1665
On a related note - is there a good way to monitor the voltage of a set of 3 li-ion cells in series? They will be powering a dc/dc converter that will be powering a ARM microcontroller. I thought about just using a resistive voltage divider, but is there anything better out there?
Thanks,
-M. Noone