How to charge a Lenovo laptop
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jeannets Posted messages 28325 Registration date Status Contributeur Last intervention -
Hey everyone,
Today, I'm reaching out for your help because I have a Lenovo IdeaPad 3 laptop (Intel i3 12th gen, 1TB SSD, etc...) which notably has a USB-C port that has left me pondering without finding an answer elsewhere.
In fact, I was wondering if it was possible to charge my laptop via this USB-C port with, of course, a 65W block like an Apple charger INSTEAD of using the original charger which is a plug whose name escapes me, but it's a plug that you can insert like the ones we have on certain alarm clocks, weather stations, etc.
All of this because the portable devices I own, like my phones, tablet, etc., have a USB-C port, so I'm wondering if it's feasible to have just one charger for all my devices.
I haven't attempted to plug the power into it to avoid frying everything haha.
I hope my request is clear enough and that someone will be able to respond.
Thank you in advance for taking the time to read my message, and I wish you all a great day.
7 réponses
Hello,
Actually, I was wondering if it's possible to charge my laptop via this USB-C port with, of course, a 65W charger like an Apple charger INSTEAD of using the original charger which has a name I can't recall but it's a plug-in type like the ones we have on some alarm clocks, weather stations, etc. No, you must use its original charger or you risk damaging the laptop. The accessories are HERE (you can find them cheaper on online sales platforms) depending on the laptop's charging connector.
Hello
By 2026, laptops will need to charge like all smartphones, via USB-C.
In the meantime, some are already compatible; indeed, I have a professional HP that allows it and also has the classic charger. You need to check the documents that came with your laptop, the information is there, it’s your laptop.
Edit: @ panth33ra, I replied without seeing yours ;-)
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Waiting for other replies; I'm attracting trolls....
Hello,
There are different configurations and evolutions under this name of "series". We would need the exact model (For example "Ideapad 3 15ALC6"). Check on the label underneath or here
Best regards.
This model supports "Power delivery," so in principle it should work.
(See under Connectivity → Ports here: https://psref.lenovo.com/product/ideapad_3_15iau7?tab=spec )
Hello,
Personally, I'm surprised by this enthusiasm for wanting to use USB-C sockets for everything..!! For smartphones of all kinds, it's great, but the power involved remains quite low and the currents manageable...
The formulas of electricity are not governed by legal texts; these values have been experimented with for over a century..etc..etc...
The big difference for an IDEPAD (or other devices) is that with its original charger around 65 W / 15 volts (to be verified), the current is around 4.5 Amperes... and with USB-C, it's standard USB 5 volts, therefore a current of 13 Amperes... In my opinion, this is a source of higher magnetic fields and close to the melting of the insulation in the cable, given the wire gauge and the socket contacts...
There is a guaranteed source of failures here... Why do we need to use 2.5² in houses for a socket at 16 Amperes very close to our 13A compared to this USB?
Could there be other laws of electricity..?? Well hidden behind the bundles.
Why not charge electric cars..? at 200hp over 500km via USB-C?
Why is it necessary to use 2.5² in houses for a 16 Ampere socket?
At home, you are using alternating current, while a PC operates on low voltage direct current.
Furthermore, chargers have been miniaturized for equal capacities.
The need for USB-C as a universal charging solution for electronics is a good thing. It will be 2026 for laptops, at least for devices requiring less than 100W; beyond that, for very powerful gaming laptops, it will surely be specific adapted chargers.
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Awaiting other responses; I'm attracting trolls....
One can feel the desire to convince, without demonstrating... Let's say that for our reader, the subject is settled..
A+++
I just wanted to express my astonishment at the laws of electricity, that's all. I have nothing to sell...
The cross-section of the copper to allow the Amperes to pass doesn't change as a result. And where is the safety margin to avoid all sorts of accidents...?
Hello,
And I'm just sharing with you the technical developments that allow us to respect the laws of electricity without starting a fire =)
If you take a look at a recent USB-C cable, you will see that the diameter has indeed increased compared to the "old" USB-A cords.
I'm curious, we can talk numbers! The USB-IF recommends using wires of powers up to 20AWG (thanks to the Americans), which is equivalent to 0.5 mm².
For the quite unfavorable case of 100W (20V/5A) on a 2m cable:
We can estimate the necessary cross-section = (0.02 (copper resistivity (rounded)) x4 (round-trip length)x5(A))/0.5 (permissible voltage drop ~ 2.5%) = 0.8 mm²
But on the USB-C, the power is distributed between two pairs of wires, so 0.5mm² x 2, there is still some margin left.
Or again, for shorter cables, which often have less significant cross-sections, averaging 24AWG or 0.2 mm² (not very big ...). If we do the calculation with a 1m cable (the most common), we end up with 0.4mm², less margin here, but still consistent.
Best regards.
Hello,
Thank you for the information.
So if I understand correctly, I can't charge my phone at all with this port or I can, but only with a Lenovo charger?