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Apple PowerBook 520 Power Adapter
The Apple PowerBook 520 AC adapter has two main uses, to charge any and all batteries while simultaneously providing power for the laptop. Upon choosing a replacement charger, selecting the Apple OEM charger will probably be the safest way to go. A universal power adapter is a possibility if you are desperate. If buying off-brand, make note of both the voltage and amperage output. Because Apple has been known to use a single AC adapter that is most likely used on other laptop models, double-check the part number or model number of the adapter.
Some clues of an unhealthy laptop charger
- Battery does not charge up completely
- Most Apple AC adapters will get warm to the touch when plugged in for any length of time
- The unit will not function while solely using the AC adapter
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