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Sony VPCW121AX Battery
Your Sony VPCW121AX battery makes your laptop portable so that you can use it wherever you fancy. It is OK to buy a battery with more milliamps, it simply means it is a stronger battery. What is important is the actual size of the battery and the connection it has. 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. The larger the battery, the longer it will last when fully charged.
Hints of an ailing li-ion battery
- The battery gets puffy and looking like it is going to burst
- The laptop is unable to boot up while unplugged
- The laptop lasts under 20 minutes while using the battery only
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