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Sony VGN-FW340J Battery
Your Sony VGN-FW340J battery allows you to move freely about which gives you the opportunity to use it wherever you fancy. 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 simply means it is a stronger battery. What really is critical to a battery fitting your laptop is the actual size of the battery and the connection it has. More amps in a battery basically means the longer you will be able to use the laptop when fully charged.
Symptoms of a defective li-ion battery
- The laptop lasts less than half an hour before it shuts itself down
- The laptop battery gets puffy and looking like it is going to burst
- The laptop will not turn on at all when unplugged
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