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Sony VGN-SR290 Power Adapter
The Sony VGN-SR290 power adapter is needed for two reasons, charging the battery and powering the laptop. When purchasing a replacement charger, selecting the Sony OEM charger will probably be the safest way to go. A universal power adapter can be used if you absolutely need to. Due to the fact that one Sony adapter is probably used on other similar units, double-check the part number or model number of the adapter. If your decision is to purchase a different brand charger, please check on both the volts and amps outputs.
Easy warnings of a barely functioning charger
- The laptop does not work without the battery installed
- Your Sony battery refuses to charge up all the time
- Most Sony adapters will get very warm to the touch when plugged in for 10 minutes or more
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