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Sony VGN-SR390 Battery
Your Sony VGN-SR390 battery allows you to move freely about so that you can use it where you want. Because no battery is the same, be sure to check the physical connection and size and compare it to the old one. Getting a battery with a higher amp rating is OK, as it suggests the battery will last a bit longer on one charge. 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 it will last when fully charged.
Major warnings your battery is dying
- The laptop does not run longer than one hour before it shuts itself down
- The Sony laptop refuses to turn on while not connected to the AC adapter
- The battery has its case swollen and looks like it will explode
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