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Sony VGN-SZ440N Battery
Your Sony VGN-SZ440N battery makes your laptop portable so as to work or play anywhere you please. Because no battery is the same, be sure to check the part number of the new battery and compare it to the one you are going to replace. It is OK to buy a battery with more milliamps, it simply means it is a stronger battery. 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.
Major symptoms the primary battery will have to be replaced
- The unit is unable to boot up when not connected to the charger
- The laptop battery is puffed up like its about to burst
- The laptop lasts less than half an hour while using the battery only
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