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Sony PCG-R505DS Power Adapter
If buying off-brand, make sure to check both the volts and amps outputs. When choosing a new AC adapter, choosing the Sony brand one is usually going to be the safest choice. A universal AC adapter can be used if you absolutely need to. The Sony PCG-R505DS AC adapter is needed for two reasons, to charge up the main battery and powering the laptop. Because Sony uses one power charger that is probably used on other similar units, be sure you choose the right one.
Signs to watch for in a bad charger
- The unit will not work using just the AC power adapter
- Battery does not charge up completely
- The majority of Sony power chargers will get warm to the touch when they are plugged in for a period of time
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