While the majority of laptop users typically trust that the laptop power adapters for our laptops are functioning properly, that’s just not always the case. Laptop charger, otherwise known as laptop AC adapters or power adapters, converts Alternating Current (AC) into Direct Current (DC) which your laptop computer can then use as a power source. They are an absolutely vital piece of your laptop. If they’re not functioning properly, neither will your laptop.
How to know if your laptop ac adapter is working the way it should be?
First and foremost, most laptop power adapters have an LED light that illuminates when power is available. They’re not always 100% though, so sometimes it’s good to run a test and make sure your ac adapter is working like it should be.
Testing laptop chargers is actually easier than you think. Below we have the very simple steps you need to take to ensure your laptop is receiving the power that it needs.
You will need Volt Meter or Multi Meter to test your laptop power adapter:
1. Plug the ac adapter into the outlet. Make sure everything is plugged in securely and properly.
2. Turn your Sony VGP-AC19V12 AC Adapter over and locate the voltage output. Voltage ratings are typically found on the bottom of the laptop adapter.
3. Grab the Volt / Multi Meter and insert the red wire into the slot marked with a + sign (positive). Plug the black wire into the slot marked with a – sign (negative). Make sure to plug the ends in without the plastic handles.
4. Set the Volt / Multi Meter to DCV (Direct Current Voltage). Make sure it’s set to a number higher than the voltage listed on the HP COMPAQ Business Notebook 6910p AC Adapter. Usually you will set the Volt / Multi meter to the number 50.
5. Place the tip of the red conductor inside the adapter and the tip of the black conductor on the outside edge of the adapter.
6. To know if the correct amount of power is being supplied, look at the needle reading. It should land on the voltage marking near the voltage listed on the back of the adapter. If it doesn’t, it may be time to purchase a new one.
Laptop AC adapter is a crucial piece of your laptop computer, so please be sure to test it every now and again to make sure your notebook is getting the power that it needs.
