my current project (http://alibe.codeplex.com/
) has an onboard LiPo 3S 2200mAh @ 11.2V. As most of you know, if the voltage drops beyond a threshold (in this case 9v), one has to charge the LiPo as a NiCd (faking the charger really). While this is a good workaround, i'd actually like to avoid doing this as I read that it reduces the battery life.
So, i was hoping i can build a battery monitor that keeps an eye out for when it falls below a certain Voltage level. I have seen several breakout boards at sparkfun, adafruit, etc.
The purpose of this thread is to find out if and what ideas you might have tried for similar applications that have worked well. I have seen a great circuit from MAXIM Voltage Monitor chips (MAX8211 and MAX8212 - attached the datasheet for reference). While this seems very cool to implement, i would not like to re-invent the wheel if a breakout board that is arduino enabled is available.
Any and all feedback/guidance is greatly appreciated.