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Sony VGN-SR490 Power Adapter
Because Sony uses one power charger that is probably used on other similar units, make sure you check the part number for the correct one. The Sony VGN-SR490 power adapter is needed for two reasons, charging the battery while simultaneously providing power for the laptop. A universal AC adapter is a possibility if you absolutely need to. If you decide to buy an non-Sony adapter, make sure to check both the voltage and amperage output. Upon choosing a replacement AC charger, the actual Sony brand will probably be the safest way to go.
Some warnings of a bad power adapter
- Your Sony battery refuses to charge every time
- The laptop does not work using just the AC power adapter
- The majority of Sony power chargers can get quite warm when plugged in for 10 minutes or more
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It is always best to check and double-check the model number so you order the correct power adapter replacement. Try to always get computer products from a known seller if you buy anything online. Your Sony VGN-SR490 will be happier for ordering smartly online. Sony VGN-SR490 power adapter is going to be better in factory new condition due to some issues on any old power adapter that may occur.
Feel free to download your manual for help.
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