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Sony VGN-FW518F Battery
Your Sony VGN-FW518F battery makes your laptop portable which gives you the opportunity to use it wherever you fancy. More amps in a battery basically means the longer you will be able to use the laptop on a single charge. Getting a battery with a higher amp rating is OK, as it suggests the battery will last a bit longer on one charge. What is truly important is the physical size of the battery as well as the connection. Not all batteries are the same, make sure and double-check the size and model number in order to make sure it is similar to the old one.
General warnings of a deteriorating primary battery
- The battery has its case swollen like its about to burst
- The unit is unable to boot up at all when unplugged
- The laptop lasts less than half an hour while using the battery only
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