LiPo 22.2V discharged to 8V. Help on discharge cut off!

I also found these but do I have to ask the price from the contacts?

http://bestechpower.com/222v6spcmbmspcbforli-ionli-polymerbatterypack/PCM-D223V1.html

http://bestechpower.com/222v6spcmbmspcbforli-ionli-polymerbatterypack/PCM-D345.html