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Dell Inspiron M4040 Battery
Your Dell Inspiron M4040 battery allows you to move freely about which gives you the opportunity to use it anywhere you please. Because no battery is the same, make sure and double-check the physical connection and size and compare it to the old battery. Getting a battery with a higher amp rating is OK, it just means the battery will go further on a single charge. What really is critical to a battery fitting your laptop is the connection type and physical size of the battery. More amps in a battery basically means the longer it will last on a single charge.
Some clues Dell battery is dead
- The unit is unable to boot up while not connected to the AC adapter
- The laptop does not last longer than 45 minutes while unplugged
- The battery has its case swollen and looks like it will explode
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