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Sony PCG-FX390 Battery
Your Sony PCG-FX390 battery allows you to move freely about so that you can use it where you want. It is OK to buy a battery with more milliamps, as it suggests the battery will last a bit longer on one charge. What is important is the actual size of the battery and the connection it has. The larger the battery, the longer it will last on a single charge. Not all batteries are the same, make sure and double-check the part number of the new battery and compare it to the old one.
Main clues the primary battery has little time left
- The unit refuses to turn on when it is not plugged in
- The laptop lasts less than an hour before it shuts itself down
- The laptop battery has its case swollen like its about to burst
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