5 ms·

usb-c on the XPS just says it's less then ideal wattage (if that's the case) and still charges.

LawnGnome 6y ago
The USB-C laptops just use straight up USB-PD, thankfully, and don't have any DRM or other controls. I've charged my USB-C XPS 13 off an assortment of Apple, Dell, and generic chargers.
- icelancer 6y ago
  Yeah, USB-C is the way to go from now on regarding this issue. Using proprietary chargers needs to die.
  - sp332 6y ago
    My Lenovo came with a charger rated for 135 watts. USB-PD maxes out at 100.
    - ashtonkem 6y ago
      They’re going to need to fix that with PD; my MBP occasionally exceeds the 100W adapter I use, causing the battery to drain.
    - Guillaume86 6y ago
      Dell has 130 watts chargers/docks over usb-c connectors, guess it's not standard PD then.
pietrovismara 6y ago
But then you get the nightmare that is cpu throttling, don't you? Had the same experience with a precision.
- anotheryou 6y ago
  How would I test that? I only use it for travel and watching movies. There as a short "brain freeze" when plugging it in, but it continues to work normally. The hardest part was finding a USB charger that: - has decent wattage - is not expensive - also charges non-c USB - does not explode (and bring down the whole trains outlets...) - throttles/splits current (instead of running hot, shutting down and leaving your equipment uncharged for the night...) I settled on this one: https://www.amazon.de/gp/product/B07PR8LDGL/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 https://www.amazon.de/gp/product/B07PR8LDGL/ref=ppx_yo_dt_b_... Only downside: no qualcom quickcharge 3.0 for the non-c USBs
  - pietrovismara 6y ago
    >How would I test that? On windows you can use CPU-Z, on linux look up for some command line solution.
    - anotheryou 6y ago
      I'm on windows :) Didn't do heavy load testing, but see the same ~2800mhz on AC/battery/usb-c (it's an i5-6300HQ)
- nickflood 6y ago
  Throttling got better with every revision of the XPS 15 that I had. On 9550 it was abysmal - sudden downclocks to 800 Mhz, mouse cursor starting to lag and making the laptop unusable. On 9560 it got mostly fine, with occasional downclocks to 800 Mhz, but much less frequent. With my current 9570 it's all good, I can use it on any charger starting from 45 watts and it's working fine.

The USB-C laptops just use straight up USB-PD, thankfully, and don't have any DRM or other controls. I've charged my USB-C XPS 13 off an assortment of Apple, Dell, and generic chargers.

icelancer 6y ago
Yeah, USB-C is the way to go from now on regarding this issue. Using proprietary chargers needs to die.
- sp332 6y ago
  My Lenovo came with a charger rated for 135 watts. USB-PD maxes out at 100.
  - ashtonkem 6y ago
    They’re going to need to fix that with PD; my MBP occasionally exceeds the 100W adapter I use, causing the battery to drain.
  - Guillaume86 6y ago
    Dell has 130 watts chargers/docks over usb-c connectors, guess it's not standard PD then.

pietrovismara 6y ago

But then you get the nightmare that is cpu throttling, don't you? Had the same experience with a precision.

anotheryou 6y ago
How would I test that? I only use it for travel and watching movies. There as a short "brain freeze" when plugging it in, but it continues to work normally. The hardest part was finding a USB charger that: - has decent wattage - is not expensive - also charges non-c USB - does not explode (and bring down the whole trains outlets...) - throttles/splits current (instead of running hot, shutting down and leaving your equipment uncharged for the night...) I settled on this one: https://www.amazon.de/gp/product/B07PR8LDGL/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 https://www.amazon.de/gp/product/B07PR8LDGL/ref=ppx_yo_dt_b_... Only downside: no qualcom quickcharge 3.0 for the non-c USBs
- pietrovismara 6y ago
  >How would I test that? On windows you can use CPU-Z, on linux look up for some command line solution.
  - anotheryou 6y ago
    I'm on windows :) Didn't do heavy load testing, but see the same ~2800mhz on AC/battery/usb-c (it's an i5-6300HQ)
nickflood 6y ago
Throttling got better with every revision of the XPS 15 that I had. On 9550 it was abysmal - sudden downclocks to 800 Mhz, mouse cursor starting to lag and making the laptop unusable. On 9560 it got mostly fine, with occasional downclocks to 800 Mhz, but much less frequent. With my current 9570 it's all good, I can use it on any charger starting from 45 watts and it's working fine.