2018 Air charging advice please

[CPablo]

Hi,
New on this forum. Need a bit of advice please. I have a 2018 MacBook Air. I am away on holiday and I'm meant to be Djing here but I forgot may 30W charger. A friend bought a 45W charger a the airport as that was all they had. My question is, "is this safe to use for a few days while I'm away"? I know it''ll charge faster but will it do any damage in the short term?
Thanks in advance
P

 

[Cameront9]

As far as I know the MBA will only take in the power that it needs. It should be fine.

 

[CPablo]

As far as I know the MBA will only take in the power that it needs. It should be fine.

Thank you

 

[flaubert]

Probably fine to get you through this tight spot, but beware that most third-party chargers lack the safety certifications and features of a true Apple charging supply. Unless purchased directly from Apple I wouldn't use it long-term.

From the conclusion of the article below, engineer Ken Shirriff writes "People don't give much thought to what's inside a charger, but a lot of interesting circuitry is crammed inside. The charger uses advanced techniques such as power factor correction and a resonant switching power supply to produce 85 watts of power in a compact, efficient unit. The Macbook charger is an impressive piece of engineering, even if it's not as reliable as you'd hope. On the other hand, cheap no-name chargers cut corners and often have safety issues, making them risky, both to you and your computer."

Macbook charger teardown: The surprising complexity inside Apple's power adapter

Have you ever wondered what's inside your Macbook's charger? There's a lot more circuitry crammed into the compact power adapter than you...

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