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Samsung Galaxy S7's Moisture Warning Prevents Charging When Wet (hothardware.com)
MojoKid writes: The Samsung Galaxy S7 and S7 Edge don't officially launch for a few more days, but some carriers appear to have shipped pre-orders early and some phones are already in consumers' hands. One early Galaxy S7 Edge owner appears to have tested his phones' water-resistance already and uncovered another new feature in the process. The user submerged his Galaxy S7 Edge in water and snapped a photo, then about four hours later plugged the phone into its fast charger and a warning popped-up on screen that stated, "Moisture detected in charging port", and the phone wouldn't charge. The user dried the phone and let it sit for a while, and it eventually started to charge again, but it wouldn't quick charge any longer. Frustrated, the user RMA'd the phone and plans to send it back to T-Mobile. The Galaxy S7 is IP68 rated, which means it is sealed against dust and can handle continuous submersion in up to 1 meter of water. However, the water detection feature that's apparently built into the Galaxy S7 is a good idea. Though the devices are IP68 rated, a few drops of water in the charging port could easily cause a short when the phone is plugged in.
So it would never quick charge again or it just wouldn't in the short amount of time the user tested it within, which really isn't stated. For all we know this could have been solved by turning if off and on again and it's something a software/firmware patch can fix.
The USB charging port is only 5V, and the resistance of water, even salt water, is high enough that it shouldn't disturb the charging process.
It's less than 0.3 ohms per metre for salt water. How far apart are the +5V and GND pins on a micro USB socket ?
Came here to read/make this comment. Apparantly Sony are dropping the mag port. USB sockets are fragile as fuck, and anyone who puts a mag port or some other alternative method of charging that obviates the need to use the usb port a few thousand times over the life of the device (when they only last a few hundred) gets my money.
Indeed. Ever read the fine print on a radiator core replacement warranty? It's usually something about "warranty doesn't apply to electrolytic corrosion in the presence of 50 milliamps or greater".
That's right. Try this test - unscrew the radiator cap, start the car, get out your multimeter, set it to a milliamp range up to 200 mA, put one probe in the coolant, and the other on the engine block. I had a warranty knockback on a replacement core because it developed pinholes within 6 months. I researched it, tested the amount of current, and went back to the installer. He got the deer-in-the-headlights look when I asked him if he had tested the current. It took a bit of arguing, but I got it all sorted.
They sentenced me to twenty years of boredom