I use a 2x3s 2650mAh 40C on a Trex500. I´ve used them under 10 times and no 3D flying at all, so they are almost new. I´ve put them into the heli today and right after lifting and changing the curve it seemed like the ESC was going into lipo cut off phase because the motor was not pushing.
I´ve tried other pack and work fine so it´s not a heli problem.
Voltage is over 4Volts in every cell
I´m quite surprised since they have been working fine and they are almost new.
Any reason you could think of?
Did anybody had problems with similar packs before?