V3 lama problem

[aboveall]

Hi, my V3 lama cant take off high and can only hover like 2-4 cm off the ground.
Can anyone help me identfy some things I should look out for?
I have already change new motors but the problem still contiunes.
Can someone list out some other things i may have to change?

Thanks

[jansonfinn]

Hi, my V3 lama cant take off high and can only hover like 2-4 cm off the ground.
Can anyone help me identfy some things I should look out for?
I have already change new motors but the problem still contiunes.
Can someone list out some other things i may have to change?

Thanks

My guess is the batt