Be sure to disconnect any external peripherals and the power adapter.
The good news: you might not need that power adapter.
Why don't we just pull the power adapter off the entire internet?
Next, a voltmeter was produced - and, in fact, registered no response from the power adapter.
Notable improvements include using only one power adapter instead of two and support for more screen modes.
This also allows batteries to be upgraded through the years while keeping the power adapters.
General adoptability was reached with version 1.0, released in late 2011, for both power adapter and battery.
I have a universal power adapter for my laptop with a car plug.
I ended up using the power adapter from my iPhone for charging.
With the 560 models, all you have to do is plug the machine into the power adapter.