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Sony VGN-AR570U Power Adapter
If buying off-brand, make note of both the voltage and amperage output. Because Sony has been known to use a single AC adapter that is most likely used on other laptop models, be certain to thoroughly note the part number that is needed for this model. The Sony VGN-AR570U power adapter provides two functions, to charge any and all batteries and to provide a source of power for the unit. Upon choosing a replacement AC adapter, choosing the Sony brand one will probably be the safest way to go. A universal AC adapter is another possibility if you absolutely need to.
Major warnings of a failing AC adapter
- The unit will not work without the battery installed
- Most Sony adapters get warm when plugged in for any length of time
- Your Sony battery refuses to charge completely
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