Hi, having a problem running my Laptop on battery power.
When the machine is connected to the mains, the battery is charging and says 100% charged. When I disconnect the mains, the laptop immediately turns off and doesn’t swap to battery mode.
When trying to turn the laptop on with just battery power, the laptop does not turn on. However, I can hear a high pitch noise every time the power button is pressed in this situation.
I have attempted this with three different batteries.
At the moment I have my machine dissembled trying to work out if there a short from one of the circuits that connect to the battery.
If anyone has had this problem or knows anyone or anywhere to fix it, please advise me.
Also if anyone knows where or if there are any circuit layout diagrams of the motherboard that will also be a great help as I can see if any of the components are shorted or burnt out.