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Sony VGN-AR690U Power Adapter
Due to the fact that one Sony adapter is probably used on other similar units, be certain you select the correct one for the VGN-AR690U model. If buying off-brand, please check on both the volts and amps outputs. When choosing a new AC charger, choosing the Sony brand one will probably be the safest way to go. A universal AC adapter is a possibility if you absolutely need to. The Sony VGN-AR690U power adapter is needed for two reasons, to charge the onboard battery while simultaneously providing power for the laptop.
What warnings are present when my Sony AC adapter really needs to be replaced?
- Your Sony battery refuses to charge up at all
- Most Sony adapters will get warm to the touch when plugged in for any length of time
- The laptop does not run while just using AC power
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