Hello,
I have been charging my Apple Watch AW4 using its original charger cable. Recently, I acquired a new fast charger, the Ugreen Nexode 100W, which has four USB-C and one USB-A ports. However, I’ve started noticing a peculiar issue with the watch. When it is on the charger, the device lights up and pings roughly every 20 seconds, and this continues indefinitely.
Interestingly, this doesn’t occur consistently. In my attempts to diagnose this behavior, I have developed three theories. First, it may stem from the Power Delivery specification, which renegotiates the wattage allocated to each active port when another device is connected. Second, there might be a problem with the Nexode charger itself.
Lastly, the issue could originate from the Apple charger cable. I found it odd that the watch continues to ping and light up even when other devices are connected. For instance, when I attached a small power bank that was at 34%, the watch behaved similarly. However, when the power bank was nearly fully charged, the AW4 did not exhibit this lighting and pinging behavior.
Considering theory two seems credible, I also tried connecting an old iPhone 8 with a USB-A to Lightning cable. In this scenario, the watch did not show any irregular behavior, regardless of whether the iPhone’s battery level was low or high. Thus, I am inclined to believe that the issue might be related to the charging cable itself. I would appreciate any insights or experiences anyone may have with this issue, particularly regarding the compatibility of the Apple Watch charger cable with a higher wattage charging brick.
Thank you in advance for your assistance. Philip
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