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Having issues with the GaN charger? Check here.

Permanently deleted user
  • Updated

Most issues can be resolved by following below steps:

  1. Unplug all devices and cables from HyperJuice
  2. Connect each device individually one-by-one from the highest power consumption to the lowest (e.g. laptops -> tablets -> smartphones -> small USB devices etc.)

Every time a device is connected or removed, HyperJuice recalibrates the power allocation to each port (see note about cables below)

For example:

If only 1 USB-C device is connected, all 100W will be allocated to that port. The device will draw whatever power it requires up the maximum of 100W.  If a second USB-C device is connected, the first USB-C device will get 65W and the second USB-C device will get 30W. 65W + 30W = 95W

Scenarios: 

  • 1C Device: 100W
  • 2C Devices: 65W (first connected) + 30W (second connected)
  • 2C/1A Devices: 45W (first) + 30W (second) + 12W (USB-A)
  • 2C/2A Devices: 45W (first) + 30W (second) + 12W + 12W
  • 1A Device: 18W
  • 2A Devices: 12W + 12W
  • 1C/1A Devices: 80W + 12W
  • 1C/2A Devices: 65W + 12W + 12W

Note about cables:

Power distribution will only recalibrate when the load changes, that is when you connect or disconnect a device. Inserting/removing cables alone will not cause the charger to recalibrate. So it is fine to leave the cables alone on the charger. The only exception to the rule is USB-C/USB-A to Apple Lightning cables and USB-C/USB-A to Apple Watch charging cables as they will present as a load to the charger and reserve power from the charger. If you are experiencing issues with calibration, unplug these cables until you need to use them.

Does charging keep restarting?
Charging Apple Watch?

Apple Watch is known to start/stop charging to control the temperature of the Apple Watch (this also happens with the original Apple charger). If you are using a USB-A to Apple Watch cable, the charger will recalibrate because Apple Watch will make it appear like the cable/load is disconnected. The workaround is to use a USB-C to Apple Watch cable. USB-C has additional CC pins that USB-A does not have so when the Apple Watch stops/ starts charging, the connection is still seen as connected and the charger will not recalibrate.

 

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Comments

5 comments

Date Votes
  • Riviera Maya Grip

    I kickstarted two units. Charged them 12 hours and neither works. They won't even charge a pair of bose sunglasses.

    What up? 

    0
  • Raymond Laurentius
    • Edited

    Yes this product Don't work

    0
  • Alex Marzan

    My USB-C-1 port is not working at all. Never worked. What can I do?
    I tried the information on this wiki already.
    Doesn’t work with the Hyper 130w battery, doesn’t work with MacBook Air 2018, iPhone Pro Max, Airpods Pro all with hyper or Apple usb-c cables

    1
  • Jose Iu

    My GaN100 suddenly have problem with 2 USB-A ports. They cannot charge iOS devices with USB-A to lightning at all. With USB-A to USB-C cables will only draw very little power. 
    I have tried to follow above steps by connecting each device one by one and also unplug all, replug all, disconnect reconnect from power outlet... 

    Still doesn’t work. Please kindly help. My unit is from Kickstarter.

    0
  • Khuned Sachdev

    I have the exact same issue with Jose Lu above, and mine is also from kickstarter, right at the beginning.  

    1.  I am not able to charge my iPhone 12 with either of the 2 USB-A ports, using a USB-A to Lightning cable.  The charge is on, then off and keep on doing this.  

    2.  When I use a USB-C port to charge the same iPhone 12 using a USB-C to Ligthning cable, the phone shows a stable charge, but the battery % does not increase.  

    What shall I do?  

    Note:  the USB-C to USB-C charging iPads and MacBook Pro works fine.  

     

    0

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