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Sony VGN-FW448J Power Adapter
If you decide to buy an non-Sony adapter, it is imperative to note both the voltage and amperage output. Because Sony uses one power charger that is probably used on other similar units, double-check the part number or model number of the adapter. A universal AC adapter can be used if you are desperate. The Sony VGN-FW448J AC adapter is responsible for two things, charging the battery while simultaneously providing power for the laptop. When purchasing a replacement adapter, the actual Sony brand is the best one to choose.
Major signs your power adapter will eventually need to be replaced
- Battery does not charge at all
- The unit will not run while just using AC power
- The majority of Sony power chargers will get very warm to the touch when plugged in for 10 minutes or more
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