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Sony VGN-Z799DGB Power Adapter
If buying off-brand, make sure to check both the volts and amps outputs. Because Sony uses one power charger that is most likely used on other laptop models, double-check the part number or model number of the adapter. A universal power adapter is another possibility but only if necessary. The Sony VGN-Z799DGB AC adapter is needed for two reasons, to charge up the main battery and to provide a source of power for the unit. When choosing a new AC charger, the actual Sony brand will probably be the safest way to go.
How can I tell if my AC adapter is on its last leg?
- The unit will not work while just using AC power
- Most Sony AC adapters will get warm to the touch when plugged in for any length of time
- Battery does not charge at all
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