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Sony VGN-Z799DGB Battery
Your Sony VGN-Z799DGB battery makes your laptop portable so as to work or play where you want. Not all batteries are the same, make sure and double-check the physical connection and size and compare it to the old one. The more power the battery has, the longer you will be able to use the laptop when fully charged. Buying a battery with a higher milliamp rating is fine, 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.
How do you know if your primary battery is almost dead?
- The laptop lasts less than half an hour while using the battery only
- The Sony laptop is unable to boot up when it is not plugged in
- The battery gets puffy and looking like it is going to burst
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