Any help much appreciated. My heart really sank when it didnt do anything. I checked the transistor & regulator locations and even tried charging the battery, but the switch had no effect
The soldering looks okay from what I can see. You could resolder the transistor and the voltage regulator as the pads arent fully covered. Reheating should do the trick.
How did you try to charge the battery without the charging board?
Thanks, I’ll give that a go.
I have an imax b6ac charger so I alligator clippee that to a couple of offcut component legs and inserted them into the battery jst connector :D.
Hopefully resoldering the transistor and vreg will solve it. I had some trouble with a couple of the pads just not getting hot enough to flood properly. Not sure why, I tried cleaning the iron and putting a dab of fresh solder on it. Maybe more time to heat the pad? Or change angle for better contact?