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yesmark2022-01-28 15:56:29
macbook
yesmark, 2022-01-28 15:56:29

Is it possible to charge a MacBook with a high power charger?

Hello, I have a MacBook pro 13 Retina 2015. I read that 60W charging is recommended, but in my city I didn’t find 60W anywhere, only if I order from a store in a neighboring city. Can it be charged with 85W charger? Will it harm the battery?

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3 answer(s)
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Michael, 2022-01-28
@yesmark

The power of a power supply is the maximum power it can deliver. If you connect to your PSU (85 W) a consumer that requires 100 W - the power supply will not cope with such a load (how exactly this will manifest itself depends on the PSU circuitry)
If you connect 60 W to it (yes, at least 5 W) - it will be mean only that the PSU is working "at half strength", it has a power reserve, because. the PSU does not determine how much it will "shove" into the consumer, but, on the contrary, the consumer determines how much it will "take" from the power source. Therefore, a power reserve can never harm the consumer. From this, by the way, it follows that the MacBook will not charge faster.

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Dmitry Roo, 2022-01-28
@xez

Can.
Nothing will happen to him.

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Grigory Boev, 2022-01-29
@ProgrammerForever

Analogy:
You are taking a bath at a rate of 20 liters per minute. The faucet simply does not allow the water to go faster. And tomorrow GorVodoKanal/ZapSibGidroVodKhoz puts up an announcement: "Earlier, each tap could produce up to 50 liters per minute, and now up to 100 liters per minute."
Nothing has changed for you personally: the faucet consumes as much water as it can;
With the power supply, the situation is the same: more watts at the same voltage means that the power supply can provide more current ( if asked ) and not burn out. But the consumer most likely will not ask

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