![Corrosion on charging rings? Is this normal? I wash and dry thoroughly after each use and return the mug to the charger, but I've noticed this happening and it's concerning me. I Corrosion on charging rings? Is this normal? I wash and dry thoroughly after each use and return the mug to the charger, but I've noticed this happening and it's concerning me. I](https://i.redd.it/rbiatyka5oh61.jpg)
Corrosion on charging rings? Is this normal? I wash and dry thoroughly after each use and return the mug to the charger, but I've noticed this happening and it's concerning me. I
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Amazon.com | Ember Charging Coaster 2, Wireless Charging for Use with Ember Temperature Control Smart Mug, Black: Coffee Cups & Mugs
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Amazon.com: HKY 19V AC Adapter Compatible with Ember Charging Coaster for Ember Temperature Control Smart Mug 2 Power Supply Cord : Electronics
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HKY 19V AC Adapter Compatible with Ember Charging Coaster for Ember Temperature Control Smart Mug 2 Power Supply Cord
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Ember Charging Coaster 2, Wireless Charging for Use with Ember Temperature Control Smart Mug, Copper
![Ember Charging Coaster 2, Wireless Charging for Use with Ember Temperature Control Smart Mug, Gold: Coffee Cups & Mugs - Amazon.com Ember Charging Coaster 2, Wireless Charging for Use with Ember Temperature Control Smart Mug, Gold: Coffee Cups & Mugs - Amazon.com](https://m.media-amazon.com/images/I/71YG2VNjhfL.jpg)