Hi all,
I got the same problem : failed to turn on after charging and found out the issue: it's the supply barrel jack!
Let me explain:
- I tested the NiMH battery and it was good (voltage & discharge charge current)
- I tested the motor and it was good (close to 0 ohm between poles), it also worked fine when supplied around 1.3V DC
- I tested the switch and it was also good
- I came to suspect the diode between the supply jack and the positive supply but by rebuilding the schematic, it could not be suspected
Then I tried to connect directly the battery to the motor bypassing the PCB and found out it worked fine. So the only remaining component was the supply jack!! It's not a dual pole jack, it's a 3 pole and I think the issues lies here: the 3rd pole is switched open (or close) when inserting the supply jack and this prevent the trimmer to start when it's charging.
As I didn't want to buy another supply jack, I just soldered 2 small cables between the battery and the motor and exited the device through a small hole: when connected together, it allowed to start the trimmer, but to charge it, I need to untie the 2 cables. Yes, it's unaesthetic but it's fine for me!
I hope this help, honestly it's very simple to solve and it's not the usual suspect (the battery)!
9 comentarios
my braun 5513 won't charge only ,purchased it 3 days ago
- de murray.wallace6
Hi @ murray.wallace6
Take it back for a replacement or refund as it should be covered by the manufacturer's warranty
- de jayeff
@jayeff HAVEN'T GOT MY RECEIPT WHY DOES IT TELL YOU THE MANUAL IT MAY NOT CHARGE PROPERLY
- de murray.wallace6
@ murray.wallace6
That is in relation to the ambient temperature where the trimmer is being charged
Most rechargeable batteries won't charge properly if the temperature is below freezing or if it is too hot e.g. >120°F (50°C)
If you bought it on a credit card sometimes they might take a credit card statement showing when and who you bought it from as proof of purchase.
- de jayeff
room temp is was between 20/25 celsius ,,
- de murray.wallace6
Mostrar 4 comentarios más