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Sony PCG-F490 Power Adapter
If you decide to buy an non-Sony adapter, it is imperative to note both the voltage and amperage output. When purchasing a replacement adapter, selecting the Sony OEM charger is usually going to be the safest choice. Because Sony uses one power charger that is probably used on other similar units, be sure you choose the right one. A universal power adapter can be used if you absolutely need to. The Sony PCG-F490 AC adapter is needed for two reasons, charging the battery and powering the laptop.
Some warnings of an ailing power adapter
- The unit will not operate while solely using the AC adapter
- Your Sony battery refuses to charge up every time
- Most Sony AC adapters can get quite warm when plugged in for 10 minutes or more
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A Sony PCG-F490 power adapter will be better for your laptop in brand new condition for obvious reasons, including possible wear on an old used power adapter. Try to always buy parts from a known seller when you buy online. It is always best to write down the part number before buying a power adapter replacement. The Sony laptop will love you more for buying the right part!
Feel free to download your manual for help.
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