Tip & How-To about Computers & Internet
Following could be the reasons for such failure:-
Computer AC/DC cable is bad not allowing the computer battery to charge
Verify that the AC/DC cable is not bad by removing the battery from the laptop and seeing if the computer can power on without the battery.
Battery is bad and/or old
If the power plug is good it's likely that your laptop battery is bad. If you're using a laptop with Microsoft Windows consider getting and installing BatteryCare on the computer to look at the total capacity of the battery.
Try leaving the laptop connected to the power with the battery inserted for at least two hours. If the battery still doesn't seem to charge, i suggest having the battery and/or the laptop serviced or repaired.
If the computer and/or battery is not in warranty i suggest replacing the battery as it's very likely that it is just a bad battery.
Battery charger board is bad
If the battery has been replaced or an alternate battery from an alternate identical laptop does not work in the computer, it is likely that the power or charger board within the laptop is bad. It's recommended that the laptop be sent in to be repaired.
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