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Sony VGN-SZ640N Power Adapter
When choosing a new AC charger, selecting the Sony OEM charger is usually going to be the safest choice. If you decide to buy an non-Sony adapter, make sure to check both the voltage and amperage output. A universal AC adapter is a possibility if you absolutely need to. Because Sony uses one power charger that powers multiple other machines, make sure you check the part number for the correct one. The Sony VGN-SZ640N power adapter is needed for two reasons, to charge up the main battery and powering the laptop.
How can I tell if my power adapter is not working right?
- Your Sony battery refuses to charge up every time
- The unit will not run while just using AC power
- The majority of Sony power chargers will get warm to the touch when plugged in for any length of time
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A Sony VGN-SZ640N power adapter is going to be better new due to some issues on an older one. Be sure to always get computer parts from a reputable seller when buying parts online. Please be sure to note the part number so that you correctly order the right power adapter. The Sony laptop will love you more if you buy the right parts.
Feel free to download your manual for help.
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