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Sony VGN-SZ791N Power Adapter
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. When choosing a new AC charger, the actual Sony brand is usually going to be the safest choice. A universal power adapter is a possibility but only if necessary. The Sony VGN-SZ791N power adapter provides two functions, to charge the onboard battery while simultaneously providing power for the laptop. If you decide to buy an non-Sony adapter, make sure to check both the volts and amps outputs.
Major signs to watch for in a bad Sony power adapter
- Battery does not charge whatsoever
- Most Sony adapters can get quite warm when they are plugged in for a period of time
- The unit will not function while solely using the AC adapter
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