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I'm summarizing your points, for my own reference and in case I misunderstood a point. Please point out any errors in my interpretation. Water damage, computer only works when unplugged battery But unplug charger, computer resets date and time, longer load Thus, always needed 100% charge Bought a new battery But with this, the charger no longer works, ...


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The answer is YES. You can use the higher power Charger on lower power laptops. The battery will only take as much as it can handle. It is a pull not push process. Extra info: If you were to use lower power charger on high power laptop, you could end up newer charging the battery fully, or it could take extended time to charge.


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You can take it to any of the various iPhone repair kiosks that appear throughout most malls. I took an old iPhone there and had the charger replaced for $45.


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No. The Thunderbolt port does not supply power to the laptop. The only way to provide power is through the MagSafe connector.


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The second type simply does not charge the MBP. It is not possible to charge the laptop (MBP) through the Thunderbolt port.


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You can leave your battery unchanged as long as you want, even it is not recommended by the operating system (i.e. Apple). From my own experience (2011 MacBook Air with 1178 load cycles), the battery performance will just degrade more. It may be be months away, but at one point the battery will be so weak that an unplugged Mac will not go to sleep when ...


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Yes, this will still work. The situation you want to avoid is using the incorrect wattage.


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Car chargers typically mis-represent the amperage they supply. I have several, most of which indicate 2.1A, and they re-charge my iPad 4 and iPhone 6 at different rates. Price is no guarantee, but in my experience, the correlation holds: the brand-name Griffin PowerJolt is my most expensive, and fastest car charger. ...


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Reset the SMC. From https://support.apple.com/en-us/HT201295: On Mac notebooks with non-removable battery Mac notebook computers that have a battery you should not remove include: MacBook Pro (Early 2009) and later, all models of MacBook Air, MacBook (Late 2009), and MacBook (Retina, 12-inch, Early 2015). To reset the SMC: Shut down the ...



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