dnmun said:
Prove it. And I'm not talking about the wikipedia article. I'm talking about from manufacturer specs. I don't remember which manufacturers site I got the info from, but they did not even come close to agreeing with your "facts". I do remember they recommended an under load cutoff voltage of no less than 3V and recommended 3.5V. From the hundreds of discharges of lipo packs I've seen, including my own, I think you have your "facts" confused. You are doing no one a service with your "facts", and anyone using your values as fact will soon find themselves with damaged lipo battery packs.
http://www.rchelicopterfun.com/rc-lipo-batteries.html
OVER DISCHARGING - THE NUMBER ONE KILLER OF LIPO'S!!!
The other thing that will heat a pack up fast is if you push it right down to or lower than 3.0 volts per cell under load. Even if you have a 40C pack and can only draw half that amount, if you push it hard right down to 3 volts per cell - it will become very warm/hot and will shorten its life substantially.
There are literally hundreds of post like this on the web.
http://www.fesselflug.eu/html/battery_questions_answered.html
5. What is the lowest safe discharge voltage of a Lipo cell?
Standard Lipo batteries should only be discharged to 3.0 vDC per cell, measured under load. Example - discharge a 5S 1800 battery to 15 vDC; 3.0 x 5 or 15 vDC. Many folks set the low voltage cutoff on their ESC to 3.2 vDC per cell - this is conservative but I think prudent. In our example this would discharge to 16 vDC under load. The place to control this is in your ESC setting.