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Sony VGN-Z591U Power Adapter
If buying off-brand, please check on both the voltage and amperage output. The Sony VGN-Z591U power adapter is responsible for two things, charging the battery and to provide a source of power for the unit. Because Sony uses one power charger that is probably used on other similar units, be certain to thoroughly note the part number that is needed for this model. A universal power adapter is a possibility if yours is unavailable or backordered. Upon choosing a replacement AC charger, the actual Sony brand is always going to be the safest and easiest way to go.
Indications your laptop charger will have to be replaced
- The laptop does not function using just the AC power adapter
- Battery does not charge all the time
- Most Sony AC adapters get warm when they are plugged in for a period of time
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