Magic Mouse 2 charging cable

[grandM]

I own a Magic Mouse 2. I use the cable not only to charge my mouse but also to charge my Samsung phone using a Ringke connector in between. The phone was wet and I charged it anyways.

At 23 percent I heard a spark and macOS said it disconnected the USB device as it used too much energy. The phone no longer charged over the lightning cable so I tried the regular samsung charging method. The phone charges.

I rebooted macOS and tried to charge my Magic Mouse over the lightning cable. No success. When however I unplug the mouse macOS shows mouse connected which seems to imply the cable syncs but no longer charges? Or is macOS preventing it despite the reboot?

 

[chscag]

Use another lightning cable. The one you used for the Samsung and the spark you experienced probably means the cable is defective. I would not use that cable any longer.

 

[grandM]

Correction. The mouse charges!
Wonder why the phone does not.

 

[chscag]

I would still use a new cable. The mouse uses a lot less current when charging than your phone. The warning you received about disconnecting the device should be reason enough. I don't know how much current your Samsung draws but even some Apple iPads can not be charged directly from the computer because of that.

 

[grandM]

There obviously is something wrong with the Samsung. I played a game for 4 minutes. The temperature of the phone rose by 4 degrees celsius. Playing longer you can barely touch it. Messaging it does not heat up.

 

[grandM]

I replaced the lightning to usb C. It charges again but playing a game the samsung heats up to 40 degrees celsius or more...

 

[chscag]

It might be time to retire your Samsung phone. About the only thing I can think of that would cause it to overheat is a bad battery or defective charging circuit.