Steve2381
Senior Member
Hello all
I have a rather nice LED worklight that my wife blew to bits yesterday by plugging in the wrong charger (12v instead of 6v charger).
PCB has disintegrated to a point where I cannot determine half the components, and the tracks have also lifted.
So... took it apart to form a plan.
3.7v, 4000mA Lipo pack - dead as a donut. Nothing in it at all. Not sure if it has internal protection - hence totally dead, but lets say its a goner.
All the SMT white leds are wired so that approx 2.4v appears to illuminate them all at a decent brightness. Current? Hmmm
So, any advice or pointers on where I can go from here? I can probably track down a new Lipo pack, or make one up to the same current capacity.
I looked on good old Fleabay for a 3.7v Lipo charger pcb that will take 6v in. Not found one yet.
Ideally... need an adjustable output charge controller.
The old PCB had an unmarked black blob controller that gave to 2 levels of illumination. Nice touch, but I can probably live without that function.
Only other feature it has is an RGB led for charging status.
Ideas?
I have a rather nice LED worklight that my wife blew to bits yesterday by plugging in the wrong charger (12v instead of 6v charger).
PCB has disintegrated to a point where I cannot determine half the components, and the tracks have also lifted.
So... took it apart to form a plan.
3.7v, 4000mA Lipo pack - dead as a donut. Nothing in it at all. Not sure if it has internal protection - hence totally dead, but lets say its a goner.
All the SMT white leds are wired so that approx 2.4v appears to illuminate them all at a decent brightness. Current? Hmmm
So, any advice or pointers on where I can go from here? I can probably track down a new Lipo pack, or make one up to the same current capacity.
I looked on good old Fleabay for a 3.7v Lipo charger pcb that will take 6v in. Not found one yet.
Ideally... need an adjustable output charge controller.
The old PCB had an unmarked black blob controller that gave to 2 levels of illumination. Nice touch, but I can probably live without that function.
Only other feature it has is an RGB led for charging status.
Ideas?