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Sony VGN-FS640-W Power Adapter
When purchasing a replacement AC charger, the actual Sony brand is always going to be the safest and easiest way to go. Because Sony has been known to use a single AC adapter that can be used on other units, double-check the part number or model number of the adapter. The Sony VGN-FS640-W AC adapter has two main uses, to charge up the main battery and powering the laptop. A universal AC adapter is another possibility if you absolutely need to. If your decision is to purchase a different brand charger, make note of both the voltage and amperage output.
Major warnings your power adapter should need replacing
- Most Sony adapters can get quite warm when plugged in for any length of time
- The laptop does not function without the battery installed
- Battery does not charge up every time
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A Sony VGN-FS640-W power adapter should really be bought new due to the wear on any old power adapter that may occur. It is always best to write down the manufacturers part number before placing an order for a new power adapter. Try to always order parts from a site you know if you buy anything online. Your Sony VGN-FS640-W laptop will be happier if you buy the right parts.
Feel free to download your manual for help.
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