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Sony VGN-FW340J Power Adapter
If your decision is to purchase a different brand charger, please check on both the voltage and amperage output. When purchasing a replacement AC adapter, selecting the Sony OEM charger will probably be the safest way to go. Due to the fact that one Sony adapter can be used on other 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-FW340J power adapter is responsible for two things, to charge any and all batteries and powering the laptop.
Signs your AC adapter is dead
- The laptop does not run while just using AC power
- Battery does not charge completely
- The majority of Sony power chargers will get warm to the touch when they are plugged in for a period of time
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