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Belkin 45w home charger for Dell XPS 9380
Can I use this charger for my new Dell XPS 9380?
https://www.belkin.com/uk/p/P-F7U010/
https://www.amazon.co.uk/gp/product/B07319Z4D8/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
The original Dell 45w charger states, 5v, 9v, 15v, 20v = 3a, 3a, 3a, 2.25a.
the Belkin charger 45w states 5v ,9v, 12v, 15v = 3a.
Belkin's website says it's compatible with the Dell XPS 13".
Many thanks
jphughan
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May 26th, 2019 23:00
@garpunkal The Belkin would offer 15V at 3A, but I don't know if the XPS system would accept that. As I said in my first reply, I can't find any specs on the XPS 13 to indicate what voltages it will accept for charging. The fact that the Dell charger offers 5V, 9V, 15V, and 20V doesn't necessarily mean that the system will use all of those. Those are all standard voltages defined in the USB PD standard, and supporting all of those voltages would make that Dell charger usable with other USB-C devices. But for example, it's possible that the XPS 13 will only accept 20V for charging. I just don't know. I suppose you could always buy it to test and then return it if it doesn't work out. To see how the system responds to the power adapter, go into the BIOS Setup (press F2 during startup) and select the Battery Information area. Underneath the battery graphic, the system will report the wattage of the attached power source when one is present. If you connect your system to that Belkin charger and it reports 45W, you're all set.
jphughan
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May 26th, 2019 09:00
It would depend on whether the XPS 13 9380 supports being charged only at 15V or requires 20V. The fact that the Dell charger provides multiple voltages doesn't mean that the Dell system supports using them all, and I can't find any documentation of the USB PD charging profiles that system supports. However, if you haven't already bought a charger, for maximum compatibility you should really consider a USB PD charger that supports 20V output as well. Anker a few weeks ago released a dual port USB-C charger that supports 60W total output and can all be provided out of one of its ports if you have a 60W device connected. Here is a link, though if you're in the UK based on your Belkin link, it might not have arrived there yet. Anker has also said they plan to come out with a black version in the future, though they haven't specified a timeframe.
garpunkal
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May 26th, 2019 10:00
jphughan
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May 26th, 2019 16:00
@garpunkal the specs do look good, but I've never heard of that vendor, so I can't make a general recommendation there. Also note that you don't have to match amps exactly; it's perfectly fine to buy a charger that is capable of providing more amps than your device(s) will use. Devices draw the amperage level they need up to what the charger will provide; a charger does not "force" amperage levels to devices that can't handle them. The devices only need to negotiate a voltage level, and the USB PD protocol handles that. If there isn't a voltage level that both the power source and device supports, then no power flows. If there is, then as long as the power source can also provide a sufficient amperage level for the device, you're all set. Many devices can accept lower amperage than they're designed for. As an example, the 15" MacBook Pro is designed for an 87W source, but it can use a 60W source, potentially with slower battery charging and/or lower performance. However, this only goes so far. If you have a device designed for 100W (20V at 5A), it probably wouldn't work at all with a 30W charger even if it supported 20V (at 1.5A), because that's just too far short of the device's requirements. But what this DOES mean is that for example if you find a 60W charger you like, it would be perfectly fine to use that with a device designed for 45W. The device will simply ignore the charger's extra capacity, but it won't be damaged -- assuming that both the charger and device are properly designed, of course, and in the early days of USB-C there were many examples of chargers that were emphatically NOT properly designed, creating risks ranging from device damage up to a fire hazard, which is why it's important to pick a trusted brand.
garpunkal
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May 26th, 2019 21:00
so the belkin power adapter would be fine as although it doesn't have 20v it would negotiate to 15v/3a?
Sorry it's quite confusing
garpunkal
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May 26th, 2019 23:00
I did buy one and I've gone into the bios with it connected and it's indeed showing AC adapter = 45 watts. So in assuming all is good?
jphughan
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May 26th, 2019 23:00
Oh, well in that case yes all is indeed good. And now you know your system supports both 15V and 20V charging. Enjoy!
JAC8513
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July 8th, 2019 20:00
I still recommend that you buy the same charger as your original charger. And I bought it cheaper and original on this website.
https://www.uklaptopaccessories.co.uk/dell-xps-13-9380-p82g-p82g002-usb-c-ac-adapter-charger-power-supply-12808.html
jphughan
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July 8th, 2019 21:00
@JAC8513 USB Power Delivery is an industry standard, and Belkin is a reputable company, so as long as Belkin's charger supports the necessary USB Power Delivery profiles, there's absolutely nothing wrong with using one of their chargers rather than Dell's own. I personally use this charger for traveling, because the 60W USB-C port is enough power for most laptops, the 18W USB-C port allows me to recharge my iPhone X at max speed, and then I have two more USB-A ports that I can use for devices like my smartwatch, wireless headphones, USB power bank, etc. It works just fine with all of those devices, and it single-handedly replaces multiple "single use" chargers that I would otherwise have to carry.