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Apple MD711LL-A Power Adapter
The Apple MD711LL-A power adapter is responsible for two things, to charge any and all batteries and powering the laptop. When purchasing a replacement AC charger, the actual Apple brand is the best one to choose. If you decide to buy an non-Apple adapter, make sure to check the output of amps and voltage. Due to the fact that one Apple adapter powers multiple other machines, be certain to thoroughly note the part number that is needed for this model. A universal AC adapter is a possibility if you absolutely need to.
Clues to watch for to know your laptop charger will need to be replaced
- The unit will not work while just using AC power
- Battery does not charge all the time
- The majority of Apple power chargers will get warm to the touch when plugged in for 10 minutes or more
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