If you’ve purchased an LG G Watch recently, or were one of the lucky attendees at Google’s I/O conference to get the wearable for free, you may have noticed that the device’s bottom charging connectors are prone to corrosion. Users have complained that the corrosion is causing them discomfort (due to the metal-to-skin contact), as well as problems with charging the device; some users aren’t able to get their smartwatches to charge at all.