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Sony VGN-Z520N Battery
Your Sony VGN-Z520N battery allows you to move freely about so that you can use it wherever you fancy. Buying a battery with a higher milliamp rating is fine, because it simply implies that the battery will last longer. What really is critical to a battery fitting your laptop is the connection type and physical size of the battery. The more power the battery has, the longer you will be able to use the laptop on one charge. Because no battery is the same, make sure and double-check the part number of the new battery and compare it to the old one.
Elements of a bad battery
- The laptop will not turn on while unplugged
- The laptop does not last longer than 45 minutes while using the battery only
- The laptop battery has its case swollen like its about to burst
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