I am trying to build a portable RGB LED display that runs off a Lithium Ion battery. After a few days of research, I understand the importance of using a dedicated IC to handle charging the battery, but I am having trouble with the over discharge aspect.
If I want to monitor the voltage of the battery, I can use the ADC on the micro-controller, or better yet, find a charging IC that incorporates an over discharge feature like the DW01-P.
But if I disconnect the main load (the RGB LED) when the battery voltage gets too low, won't the IC or micro-controller still need power from the battery to run (i.e to keep the LED disconnected)? And wouldn't that cause the battery to further discharge and damage it?