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Sony PCG-F420 Battery
Your Sony PCG-F420 battery makes your laptop portable so as to work or play where you want. Because no battery is the same, be sure to check the model number and compare it to the one you are going to replace. The more power the battery has, the longer it will last when fully charged. It is OK to buy a battery with more milliamps, it just means the battery will go further on a single charge. What is important is the connection type and physical size of the battery.
Major warnings the primary battery will eventually need to be replaced
- The unit does not turn on while unplugged
- The laptop lasts less than an hour while using the battery only
- The battery gets puffy and looks like it will explode
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