My fw3 does not light up has no power when battery is connected

[Scottyboy]

My fw 3 has no power does not light up when battery is connected

 

[AliMc]

Have a fwi3 I think but not had this issue, if it's the same as mine maybe give the 3 connectors on both the battery and the chassis a bit of a clean ?

 

[CliveW]

Check the wire where the trolley folds, it is prone to breaking from repetitive bending.

 

[pokerjoke]

Have you turned the switch to on ,on the battery itself?