Laptop won't turn on without battery?

Question

Iron

After cleaning, the laptop stopped starting without a battery, while you could insert the battery - start the laptop - pull out the battery and the laptop would still work. With all this, in the battery mode, he wrote that he could not charge the battery, and showed 90 hours !!! how much is left before the charge is completed. Then when the charge went to zero, it completely stopped turning on. Such question with what it all can be connected? If the charge controller is damaged, then it would be cut down in network mode when it pulled out the battery, but it continued to work. But without a battery, he's just a vegetable.

Answer 1

But without a battery, he's just a vegetable.

I don’t know what you cleaned there, but the laptop seems to understand your charging as a noname
Check the power plug and plug
After the repair, my roof began to leak.
Help people!

Answer 2

If the charge controller is damaged, then it would be cut down in network mode when it pulled out the battery

For what reason?! O_o
The charge controller is responsible for, oddly enough, the battery charge, but the laptop is not powered by the battery !
Check the voltage on the battery itself, and then disassemble and check the voltage on each "cell" (these can be two parallel batteries, one or both may be faulty)
If it now does not turn on at all, then the so-called circuit. The "charger" (the same "charging", in fact, there is not only a charger, but also a power circuit) does not switch to mains power.

Answer 3

I observed this in super-budget laptops, without a battery - they did not start.
Apparently, the power controller works strictly from the battery and without the battery it is impossible to give power good.