Windows 10: When my laptop battery is low, the charger turn on and off continuously when the laptop is on

When I powered off the laptop, it charges normally. Even when the battery is more than 70, it can still happen. Please help

:)

 

Battery Charger for a Dell Laptop

At the shop we work at, costumer's sometimes actually forget the charger for us to work on there laptop, so we use this mega 15-20v changing laptop charger with 15+ adapters on a strip for all kinds of laptops. Its shifty but it chargers laptops and keeps them running pretty well.

Id get the exact charger though so you don't end up breaking your laptop battery over time.

 

Battery Charger for a Dell Laptop

My friend just gave me a Dell Inspiron 600M Laptop which did work last time he used it, but that was a couple years ago. He no longer has the battery charger for it and I know I can easily buy another one for it. I have two questions: Could there be any long-term effects to the battery for not being charged for over a year or 2? ....and (this is a long shot) would the battery charger from my old Gateway Laptop work on this Dell 600M?

 

Laptop won't turn on if the battery is plugged in (black magic?)

If by PSU you mean the external notebook charger, it works, I already said that I tested it in another laptop and it worked just fine. Oh, I forgot to mention a weird thing, talking about this. When I connect ANY charger during the "I'm at Limbo" time, right after plugging in the battery and removing it, which lasts like 5 minutes, that charger I connected gets "poisoned"?

I checked the volts and it normally has 20V or so. The "poisoned" charger reads 4V or if I remember correctly, even less. During that time, no matter where I connect that charger, it won't work.

Let me tell the whole story. I have charger A with the laptop A (lenovoY510p), and I have charger B with the laptop B. The B product works perfectly fine, it's an ASUS product and works just like any other working laptop.

OK, the process is this:
I plug in the battery A in the laptop A, no charger A plugged in. Turn it on, seems completely dead, no LED's.
I read the charger A and has 20V or so. Plug charger A in laptop B to check if it works, and of course it works.
Plug charger A in laptop A. Turn it on, completely dead.
I remove battery A from laptop A, turn it on again, completely dead.
I remove charger A from laptop A, proceed to plug charger A in laptop B. Laptop B doesn't get charged.
I unplug charger A from laptop B, read the charger A and has really low voltage, 4V or mV, I don't remember actually.
Wait a few minutes.
Plug in charger A in laptop A, battery A remains unplugged. Turn it on, nothing, dead.
Wait a few more minutes, try to turn it on several times, until suddenly, it turns on.
I turn it off, and then on, several times, works fine every single time.
The exact same thing happens if instead charger A I try charger B.

Whenever I plug in battery A in laptop A, it goes Limbo again.