How to Test a Laptop Charger

Laptop computers are one of the many items that we use that depends on a rechargeable laptop battery to keep it up and running. When your laptop fails to stay charged or to charge at all, it is time to troubleshoot the issue on your own before paying a professional. First test the charger to make sure that it is working properly.

You can test your laptop battery charger follow the below steps

Be sure that the charger is plugged into a working outlet and getting power.

Try charging your laptop with the laptop powered off. Sometimes the charger will charge the laptop when it is powered completely off, but not when it is on. If it only charges the Toshiba laptop battery when the laptop is off, then you have a faulty charger.

Check the battery for corrosion and/or leakage. If there is a sign of either corrosion or leakage you will need to stop attempting to use the battery pack and replace it immediately.

Try to run the laptop from the laptop charger only; if it will not run off the charger alone then the charger is faulty or no longer any good to power the battery. In some cases your laptop will run off the charger, but the charger will not be strong enough to charge the laptop. In this case you have a faulty charger.

Test your charger with a voltmeter. If it is an AC charger of battery, set a voltmeter to 25 VAC. Make the contacts and probes touch, and look for a reading. If there is not a reading on the meter, the charger is not any good. For DC chargers, set a voltmeter to 25 VDC and make the contacts and probes touch. The meter should read at least 1V more than the chargers rating. If it does not, the probes need to be switched.

4.2V 0.8A li-ion battery charger

Advantages of Battery Chargers

There are various battery chargers that give immense benefits to its owners. They provide the convenience, saving, and the surroundings, contributing to the new technology, while in use. Battery chargers are an outstanding addition to your office, house or perhaps car.

They are a very useful tool. The way to obtain batteries at the office or home may become considered an odd job. Using rechargeable battery charger ensures the limitless supply, wherever and whenever you need them. It is required for the mobile phone, laptop, mp3 player and it seems inevitable for the most. The usefulness of a car battery charger is usually huge. Regardless of whether it is required for charging digital camera batters or charging the battery for your ship, it is a time-saver if you own one of it. The majority people use some form of battery charger daily, weekly or monthly.


The benefits of the chargers speak for alone. There are people who want to be involved in the technological progress. Many people want to help preserve the earth and its resources. Most people want to save time. Everyone wants to save money.

4.2V 0.8A li-ion battery charger