Micro 120s2 cuts out

Hi All
Has anyone had a 120s2 power down itself shortly after take off. Perfectly good full batteries.
Any suggestions would be welcome
 

D.O.G.

Goblin 380 Supporter
If I was you I would check the solder connection to the battery and esc. I had that problem and my 550 did a nose dive because a bad solder connection. The worst part is that I'm the one who soldered it :(.
 
Thanks D.O.G
I'll have a look, it spools up and takes off just fine then after about 30 seconds the red light low battery cut off flashes and the heli drops back to the ground..I check the batt voltage and its around 4v.
Bit of a pain. All batts the same result.
 

murankar

Staff member
Have nit messed around with the model so I don't know it at all. Sounds like it could be an esc issue. Or your having a ton of voltage drop on the pack under load.
 
Have nit messed around with the model so I don't know it at all. Sounds like it could be an esc issue. Or your having a ton of voltage drop on the pack under load.
Thanks murankar
I fixed the issue. One cable to the ecs was hanging on by 2 strands , I re soldered the cable and perfect.
Ta
 
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