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Sony VGN-Z780D Power Adapter
If you decide to buy an non-Sony adapter, make sure to check both the volts and amps outputs. Upon choosing a replacement AC adapter, the actual Sony brand will probably be the safest way to go. A universal AC adapter is another possibility but only if necessary. The Sony VGN-Z780D power adapter provides two functions, to charge up the main battery while simultaneously providing power for the laptop. Because Sony uses one power charger that is most likely used on other laptop models, be sure you choose the right one.
Key signs of an inadequate charger
- The unit will not function without the battery installed
- Battery does not charge whatsoever
- Most Sony AC adapters get warm when they are plugged in for a period of time
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