Laptop batteries have a different lifespan than other computer parts. Each time you use your battery to run your computer, you're depleting its lifespan. After about 500 cycles of use, you probably will have to replace your laptop battery.
Sometimes, the battery dies much sooner. This could be the result of use or a defective battery. Try the following steps to determine if your Lenovo laptop battery is indeed defective.
New laptop batteries must be charged before use. Charge the battery overnight or at least 12 hours before you attempt to use it. Refer to your user guide for any further charging instructions.
If your laptop's charger suddenly stops charging the battery at any point in the process, remove the battery and re-insert it. This should restart the charging process. This could occur several times. But as long as the charging resumes, your battery should work at the end of the process.
If your battery still doesn't work, make sure your laptop's basic input/output system (BIOS) is up to date. If the BIOS is not up to date, update and retry the battery.
If none of these steps work, your battery could be defective. Connect your laptop to another battery to see if the problem is the battery or your computer. If a duplicate battery works fine, the original HP COMPAQ battery is defective.
If the duplicate battery doesn't work, the problem could be another part of your computer. Take the battery and all related equipment to your computer dealer. Ask your computer dealer to test the battery and computer for defects.
