hy. i have a lenovo B580 who have a strange simptom.
when i start the laptop with charger without battery , the laptop shows that it have battery and it have 38000 hours autonomy
when i connect the battery , the laptop shows that i have connect the charger and it shows charging
when i take out the battery with charger connected to laptop, the laptop is shut down instantly
i don't understand what is the problem.
before it was water damaged near BQ25A.
i changes this charg controler also i changed the 2 small transistors SI412DN it was shorted.
this BQ i take it form an acer. could be that the problem
Posted after 2 hours 30 minutes 55 seconds:anf_andrei писал(а):
before it was water damaged near BQ25A.
my mistake! before was a BQ737 so i have to search for a good part.
i will come back with news
