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Sony VPCEC390X Battery
Your Sony VPCEC390X battery makes your laptop portable which gives you the opportunity to use it anywhere you please. The larger the battery, the longer you will be able to use the laptop on one charge. Not all batteries are the same, be sure to check the physical connection and size and compare it to the one you are going to replace. It is OK to buy a battery with more milliamps, because it simply implies that the battery will last longer. What really is critical to a battery fitting your laptop is the actual size of the battery and the connection it has.
Simple signals the li-ion battery has to be replaced
- The laptop battery gets puffy like its about to burst
- The unit refuses to turn on when it is not plugged in
- The laptop lasts under 20 minutes while using the battery only
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