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Go to SolutionCorrect power supply
According to the original system configuration for my Dell Inspiron 15 5578 2-in-1 the power adaptor is a
ADPT,AC,45W,CHNY,3P,4.5,LC,WW
infact the Power adaptor that came with this laptop is 65W,
Which would be the correct replacement version i should purchase?
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jphughan
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Posted July 12th, 2021 09:00
@HairSuit Don't ever post Service Tags on a public forum. At a minimum, those can be used to file fraudulent ownership transfer forms for your system, which can make it harder for you to prove ownership or get warranty support.
According to the Power Adapter page of that system's Setup and Specifications document here, it can come with either a 45W or 65W adapter. For systems that can come with multiple power adapter types, the difference usually depends on which CPU and/or GPU you configure the system with. I'm not sure how your build sheet indicated a 45W adapter and you ended up with a 65W adapter, but if you want to be safe I'd order a 65W adapter. There's absolutely no harm using a higher wattage power adapter with a system that has lower requirements. The system will only draw what it needs. The power adapter won't "force" it to accept more power than it needs or can handle. The only drawback is that the 65W version might be slightly larger, heavier, and more expensive. But the risk of using an undersized power adapter is that you can see slower battery charging and throttled performance.