I have a LiPo 2s 7,4V 50c 6000mAh battery that wont charge (error message: Low Voltage) All settings are correct. I have tried charging on nimh mode in 10-15mins multiple times. but when i start charging normal, after about a minute it says "cell low vol" and stops charging. the same happens to all other charging modes. please help

Ive had this happen. your batteries voltage has dropped below your charger's minimum settings. I was able to charge it up to an acceptable level using the nihm function on another charger. Since you've tried this with no success, possible your battery has malfunctioned. I wore a battery out and couldn't get it to charge.

When it says Low voltage, "S" set incorrect. Low cell, get it to individual cell voltage to see which cell is low. What ever cell is low, set charger to NiMh to 1amp. Get that cell upto 3v. Babysit the charger every 30 second turn the charger on and off. Once cell is at 3v, change charging mode to Lipos. Should charge normally. Set up ESC cutoff to 3.4v so this wont happen again you you drain too low. Lipos not to discharge less than 3v.
Read manual to get reading of individual cell voltage.