When your laptop battery doesn’t work, you need to replace it. after get a replacem ent laptop battery from the market, you may want to know if it is good or bad. There are many different ways to do this. You need go to the start menu, click the control panel and open Power Options. Choose the Power Meter which shows the percentage of how charged your laptop battery is. You want to charge the laptop battery to 100%. And with the laptop running, you need to unplug it for 10 minutes. And after 10 mins, if you battery lose more than 10% in 10 minutes, your laptop battery seems not good. For some newer models, there is a quick way to know your laptop battery is good or not, you can use the light meter. When you press it, it shows how your battery is charged. if you hold on the button, the light will come on and later go back off. And if they come back on, the more lights that come on, the more cells are damaged. if no light come back on, the laptop battery is good. If all lights comes back on, the laptop is probably bad.
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