First, let's power on the system with only the battery. Unplug the AC adapter from the system. Press the power button and check if the system powers on.
If the system is unable to power on, try turning it on with only the AC adapter. Skip to the next step if the battery is inaccessible. Unplug the AC adapter, press the power button for 10 to 15 seconds and make sure no LEDs are on.
Consult your system's user manual to learn how to properly remove the battery. Disconnect the battery and plug the AC adapter into the system. Attempt to turn on the system.
If the computer does not power on, proceed with the next step. Power on the system with a docking station. Disconnect any external peripherals from the dock, plug the computer into the dock and attempt to power it on.