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Sony VGN-Z720Y Power Adapter
If your decision is to purchase a different brand charger, make note of both the voltage and amperage output. Due to the fact that one Sony adapter is most likely used on other laptop models, double-check the part number or model number of the adapter. Upon choosing a replacement AC charger, the actual Sony brand is always going to be the safest and easiest way to go. A universal AC adapter is a possibility if you are desperate. The Sony VGN-Z720Y power adapter is responsible for two things, to charge up the main battery and powering the laptop.
Red flags your AC adapter is failing
- Battery does not charge up whatsoever
- The majority of Sony power chargers can get quite warm when they are plugged in for a period of time
- The laptop does not function while just using AC power
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