3 ms·

/Off topic I was going to ask how to test these things as I need to do some housekeeping too. I just found out about (and bought) a digital USB volt/amp meters

/Off topic I was going to ask how to test these things as I need to do some housekeeping too. I just found out about (and bought) a digital USB volt/amp meters. Here's an example. [0] [0] https://www.amazon.com/Eversame-Multimeter-Voltmeter-Indicator-DC3-6-30V/dp/B07JYVPLLJ/ref=sr_1_50?crid=2OYRSNGDGF0BH&keywords=eversame+2+in+1&qid=1672194631&sprefix=eversame+2+in+1%2Caps%2C104&sr=8-50 https://www.amazon.com/Eversame-Multimeter-Voltmeter-Indicat... edit: I just read this write-up [1], which clearly explained why the 65W USB C charging hub I bought doesn't necessarily enable "super fast charging" on my Samsung phone. Chargers and cables need to meet PD3.0 standard with PPS support to dynamically negotiate the volts and amps to maximize power throughput safely. Otherwise, you get auto-downgraded due to sticky default voltages. [1] https://www.gsmarena.com/dont_just_buy_any_45w_pd_charger_for_the_samsung_galaxy_note10-news-38837.php https://www.gsmarena.com/dont_just_buy_any_45w_pd_charger_fo...

Fogest 4y ago
Curious if this device you linked would also work to test things like the power bricks themselves and not just the cables? Would love to get rid of some low performing cables as well as the older power bricks. Edit: Based on the description it does sound possible.
aix1 4y ago
I use a FNIRSI-FNB58 tester for this. It can read and display e-markers. https://www.aliexpress.com/item/1005004665244812.html https://www.aliexpress.com/item/1005004665244812.html
- rekoil 4y ago
  I've been thinking I should have something like this. Is this "the best there is" in this price category, or is there an even better product that someone here wants to recommend?
  - aix1 4y ago
    > Is this "the best there is" in this price category That was my conclusion when I looked into this about a month ago, especially if USB-C is the main focus. I remember a reviewer pointing out some deficiencies on the USB-A front (compared to other, simpler, meters) but unfortunately I don't remember what they were.
- FeistySkink 4y ago
  I was thinking of getting something like this, but wouldn't it get outdated as soon as there's a new standard, i.e. very fast?
  - aix1 4y ago
    That's definitely a risk. The firmware on the unit is upgradable. While there's no guarantee that the manufacturer will (or can) add support for any given future standard, looking at the firmware changelog suggests they have at least some track record of doing this: V0.65 2022-10-27 Add automatic detection QC4/QC4+/QC5 V0.63 2022-10-16 Compatible with other Xiaomi charging heads V0.60 2022-10-07 Added support for PD3.1 triggering V0.60 2022-10-07 Added support for Xiaomi A port PD charging head triggering
    - FeistySkink 4y ago
      Sounds good. Thanks for the update.

Fogest 4y ago

Curious if this device you linked would also work to test things like the power bricks themselves and not just the cables? Would love to get rid of some low performing cables as well as the older power bricks. Edit: Based on the description it does sound possible.

aix1 4y ago

I use a FNIRSI-FNB58 tester for this. It can read and display e-markers. https://www.aliexpress.com/item/1005004665244812.html https://www.aliexpress.com/item/1005004665244812.html

rekoil 4y ago
I've been thinking I should have something like this. Is this "the best there is" in this price category, or is there an even better product that someone here wants to recommend?
- aix1 4y ago
  > Is this "the best there is" in this price category That was my conclusion when I looked into this about a month ago, especially if USB-C is the main focus. I remember a reviewer pointing out some deficiencies on the USB-A front (compared to other, simpler, meters) but unfortunately I don't remember what they were.
FeistySkink 4y ago
I was thinking of getting something like this, but wouldn't it get outdated as soon as there's a new standard, i.e. very fast?
- aix1 4y ago
  That's definitely a risk. The firmware on the unit is upgradable. While there's no guarantee that the manufacturer will (or can) add support for any given future standard, looking at the firmware changelog suggests they have at least some track record of doing this: V0.65 2022-10-27 Add automatic detection QC4/QC4+/QC5 V0.63 2022-10-16 Compatible with other Xiaomi charging heads V0.60 2022-10-07 Added support for PD3.1 triggering V0.60 2022-10-07 Added support for Xiaomi A port PD charging head triggering
  - FeistySkink 4y ago
    Sounds good. Thanks for the update.