I'm guessing the charger that comes with the watch is the someone that comes with the IPhone. You can also use the iPad charger to charge the iPhone. Will the iPad charger also charge the watch? Would save carrying 2 chargers on trips.
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Included Apple Charger
- Thread starter Bigdog9586
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You said the charger. It takes two components to charge either device. The brick that goes in the wall and the cord that goes from the brick to the device.
Like I said, the bricks are the same.
The cords are different.
I think the jist of the question is "will the iPad charger charge Watch faster, as well?"
Is this confirmed? Why is this? I'm not questioning you, I'm just curious to how/why an iPad or iPhone would charge faster but not the watch. I'm generally ignorant on topics regarding charging/electricity etc.
Thanks!
Confirmed by users, I've seen a photo someone measured the power going into the watch and it was between 1 and 2W. Apple has built in limits that control current going into the battery because 1) safety, charging too fast could be dangerous, and 2) gives the battery a longer life. iPhones (especially the 6 and 6 Plus) and iPads have much larger batteries compared to the Watch, so they can safely accept more current (power).
Also, the inductive charging process induces current into a coil inside the watch. As USB uses a low voltage, and a low voltage in inductive charging is good for safety, to get a faster charge would require a higher current to be generated. A higher current would cause more heat to be generated in the coil (Joule heating). As you can feel, the watch already gets pretty hot when charging. By stepping up the current, this could cause the watch to be uncomfortable to wear when fresh of the charger, so this could be another reason for the lower current draw.
Also, as a side note, the hardware limiting the current draw is also certainly contained within the charging puck. There may also be something within the watch.