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Sony PCG-F640 Power Adapter
If your decision is to purchase a different brand charger, make sure to check the output of amps and voltage. The Sony PCG-F640 AC adapter has two main uses, to charge any and all batteries while simultaneously providing power for the laptop. A universal AC adapter is a possibility if yours is unavailable or backordered. When choosing a new adapter, selecting the Sony OEM charger is always going to be the safest and easiest way to go. Because Sony uses one power charger that is probably used on other similar units, be sure you choose the right one.
Clues your laptop charger is going to die
- The majority of Sony power chargers get warm when plugged in for any length of time
- The laptop does not work while solely using the AC adapter
- Battery does not charge up whatsoever
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