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Charging Edge 1040 with USB-C PD chargers ... is it OK?

Garminsi
over 1 year ago

Charging my Edge 1040 with the Garmin USB-A wall-charger, works with 0.5 ampere / 2.5 watts. Battery was down to 30%. 

Charging with an USB-A computer-port it is also with 0.5A. 

These are the charging methods described in the manual.

For a short test I connected the Edge with a USB-C PD charger, and charging was with 1.4 ampere / 7W (using a Anker 711 Nano II Charger and a Anker USB-C to USB-C charging cable).

My question: is this a save and recommended way to charge? 

Also I noticed that that charging with 3rd-party USB-A chargers results in 1A / 5W charging.

Test results:

Charging USB-A with the Garmin 5V / 2.4A charger (model 010-13023-02). 

Charging USB-A with a Belkin 5V / 2.4A charger

Charging USB-C PD:

Summary:

  • Charging with original Garmin USB-A charger and Garmin cable is at 0.5A only (but charger supports up to 2.4A)
  • Charging with computer on USB 2.0 USB-A port with Garmin cable ist at 0.5A
  • Charging with computer on USB 3.1 USB-A port with Garmin cable ist at 0.5A (but port supports up to 0.9A)
  • Charging with all other USB-A chargers I tested is always at 1A (chargers from Belkin, Samsung, and Apple used)
  • Charging with with computer on USB 3.2 Gen1 USB-C port is at 1.3 A
  • Charging with a USB-C PD charger using USB-C to USB-C cable is at 1.4 A
  • Charging when powered off is ALWAYS with exactly 0.36A nomatter what charger used

The Garmin-recommended charging methods: original cable on either a USB-A computer-port or the Garmin-charger results in 0.5A-charging.

Using 3-party USB-A chargers or a USB-C PD charger results in 1 to 1.4A charging (2 to nearly 3 times more). 

  • 0 over 1 year ago in reply to marcelvos1987

    Since I am not desperate to show off whatever knowledge I think I have on a board of strangers online, I will just say to the original poster, be careful how you charge your 1040, it is a known issue that they can overheat in some combinations of chargers/cables etc.

    Marcvelos please find a job.

  • 0 over 1 year ago

    has garmin published the spec of what charging standard is supports (PD/QC etc), what volts/amps the edge 1040 will draw when turned on and off?  

    In terms of the battery from their FCC submission fccid.io/.../Internal-Photos-5811227
    3.8v battery
    1800 mAh solar Edge 1040
    1900 mAh non-solar Edge 1040

    From dcrainmaker edge 1040 article after he asked garmin
    A) Charge time is 2 hours for empty to full - (thats like average 0.9 amp per hour)
    B) Fastest charging supported is a 3A/5W charger

    in this thread there is a lot of talk about USB standards, but we still don't have the info on what the charging standard edge 1040 supports/allows from Garmin themselves

  • 0 over 1 year ago in reply to cycleanalyze

    To reward your advice of finding a job, I have some advice for you as well: dial it back with the negativity. It's better for your health.

    First-off, your advice of being careful because of known problems is valid. There have been problems, so people should be careful.
    However, just like at my job of a business development manager at a software company, I like to know what is causing the problems. Just knowing they exist and accepting them isn't helping anyone, and analysing the situation and describing what people should be able to expect isn't showing off. A lawyer analysing someone's problems with the law in legal terms isn't showing off. Neither is a doctor analysing someone's illness showing off. They're just trying to help by analysing the situation with the knowledge and information available to them. This analysis can be helpful to others, even if it isn't valued by you personally.

    Also, like our own customers, Garmin's customers should be able to expect a certain level of quality and adherence to standards. We've paid serious money for  brand new devices from a reputable and established company, so we have a right to know whether those devices get damaged by using faulty chargers/cables, or by Garmin having a faulty USB implementation or production problems. If you're not interested in that information, that's fine, but don't judge others for wanting to find out what's actually happening.

    Finally, I can't help but find your username a bit ironic for someone judging others for wanting to analyse these problems... Wink

  • 0 over 1 year ago in reply to cycleanalyze

    Yep.  Totally agree. USB-A cables are basically 5v and around 3A max (18w). Go to USB-C and you can get multiple voltages up to around 20v and current.  

    It is a bit concerning thought that Garmin are now saying you need to effectively restrict your charging by using a USB-A cable.  Seems like they haven’t made the charging circuit good enough.

    That being said I have connected to a 40w USB-C PD Anker charger and not had issues.  It also charges faster as expected.  Maybe Garmin are protecting themselves (and us) against cheaper chargers.  Don’t know but I do expect any device to be able to sense the source charger and restrict as necessary.  There are plenty of examples of phones not charging fast as they don’t “trust” the charging source. 

  • 0 over 1 year ago

    I tried an orginal Garmin 5V / 2.4A charger (model 010-13023-02). Charging was as low as 0.52A !
    It took 2 hours to charge from 32% to 79%, very slow.

    Also, there is a new Garmin 5V/3A USB-C charger, Garmin website states it's compatible with Edge 1040: www.garmin.com/en-US/p/999097

  • 0 over 1 year ago in reply to jonathanlynch

    If the charge time is 2 hours, that would indicate 4.5W effectively (0.9A @ 5V). So it most likely supports a maximum of 5V/1A = 5W, with 10% charge losses.

  • 0 over 1 year ago in reply to marcelvos1987

    It is 2 hours for a 47% charge (32% ==> 79%), a full charge from flat to 100% would be near 4 hours. So it is more like 2.5W 5V/0.5A, exactly what the USB-tester shows.

    Test results:

    • Charging with original Garmin USB-A charger and Garmin cable is at 0.5A only (but charger supports up to 2.4A)
    • Charging with computer on USB 2.0 USB-A port ist at 0.5A
    • Charging with computer on USB 3.1 USB-A port ist at 0.5A
    • Charging with other USB-A chargers I tested is always at 1A (chargers from Belkin, Samsung, and Apple used)
    • Charging with with computer on USB 3.2 Gen1 USB-C port is at 1.3 A
    • Charging with a USB-C PD charger using USB-C to USB-C cable is at 1.4 A
  • 0 over 1 year ago

    Well one thing I can confirm - you just made me order one of those USB testers!

  • 0 over 1 year ago in reply to iheathcock

    I usually charge mine off a Macbook Pro power supply (and cable that came with it) as it’s convenient. Not had a problem with overheating.