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Apple MD224LL-A Power Adapter
Because Apple has been known to use a single AC adapter that powers multiple other machines, make sure you check the part number for the correct one. The Apple MD224LL-A power adapter is responsible for two things, charging the battery while simultaneously providing power for the laptop. A universal AC adapter is a possibility but only if necessary. If buying off-brand, it is imperative to note both the volts and amps outputs. When purchasing a replacement adapter, choosing the Apple brand one will probably be the safest way to go.
Symptoms your AC adapter will have to be replaced
- Battery does not charge whatsoever
- The laptop does not function while solely using the AC adapter
- Most Apple adapters get warm when plugged in for any length of time
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