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Sony VGN-P688E Battery
Your Sony VGN-P688E battery makes your laptop portable so as to work or play anywhere you please. The more power the battery has, the longer it will last on a single charge. It is OK to buy a battery with more milliamps, as it signifies that the battery can last for a longer period of time on one charge. What is truly important is the connection type and physical size of the battery. Because no battery is the same, be sure to check the physical connection and size and compare it to the old one.
Some warnings of a weakening primary battery
- The laptop will not turn on when it is unplugged
- The laptop lasts under 20 minutes while using the battery only
- The battery is puffed up like its about to burst
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