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Compaq NC4000 Battery
Your Compaq NC4000 battery allows you to move freely about so as to work or play anywhere you please. Buying a battery with a higher milliamp rating is fine, it just means the battery will go further on a single charge. What really is critical to a battery fitting your laptop is the actual size of the battery and the connection it has. Not all batteries are the same, be sure to check the physical connection and size and compare it to the old battery. The more power the battery has, the longer it will last on one charge.
How can I tell if my li-ion battery is dying?
- The laptop battery has its case swollen and looks like it will explode
- The laptop lasts under 20 minutes while using the battery only
- The laptop does not turn on at all when unplugged
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