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Sony VGN-FW400 Battery
Your Sony VGN-FW400 battery allows you to move freely about so that you can use it wherever you fancy. The more power the battery has, the longer you will be able to use the laptop when fully charged. Getting a battery with a higher amp rating is OK, as it just means the battery will last longer. What is truly important is the physical size of the battery as well as the connection. Not all batteries are the same, make sure and double-check the size and model number in order to make sure it is similar to the old battery.
Red flags the primary battery is failing
- The laptop battery is puffed up like its about to burst
- The laptop lasts less than an hour while using the battery only
- The laptop will not boot up while unplugged
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