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Sony VGN-BX640P Power Adapter
When choosing a new adapter, the actual Sony brand is usually going to be the safest choice. If buying off-brand, make note of both the voltage and amperage output. A universal power adapter can be used if you absolutely need to. Because Sony has been known to use a single AC adapter that is probably used on other similar units, be sure you choose the right one. The Sony VGN-BX640P AC adapter is needed for two reasons, charging the battery while simultaneously providing power for the laptop.
Easy warnings your AC adapter will not last the year
- The majority of Sony power chargers will get very warm to the touch when plugged in for any length of time
- The laptop does not function while just using AC power
- Your Sony battery refuses to charge up all the time
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