A:AnswerThe Ember Mug does not come with a wireless charger and cannot be charged with a USB. The mug comes with a charging coaster that is connected by a regular 2 prong wall plug.
A:AnswerHi there! Unfortunatley we do not offer an accesory that would allow multiplemugs to be charged at the same time. But we do appreciate the feedback and we are happy to send this back to our team!
A:AnswerHi there, thanks for reaching out! The charging coasters are interchangeable and laterally compatible to each mug. Both charging coasters use the same charging technology so you can charge the Ceramic Mug (both the 10 oz and 14 oz) on the Travel Mug coaster and vice versa!
A:AnswerEmber mugs need Ember charging coasters. The home coasters use AC (wall plug) power supply only. [I don't have a travel mug; I've no idea if the travel mug's charging coaster can use car power plug.] Plug itself is a sizable AC to DC converter; fine for direct plug into wall socket, space hog if trying to use a power strip / multi-plug set up.