XpresSpa Group Inc (XSPA)

[copperslash]

Here's to conductive charging!

Down with Qi!

"If you're wondering why induction charging hasn't taken over the world, there are a few good reasons.

For a start, it's not very good. Most wireless chargers operate at about 40% efficiency, where a decent cable can provide double that amount. Low efficiency means it loses energy to heat, so devices charge slower, which results in a higher power bill when compared to physical cables. It's also more complex and therefore more expensive to manufacture. ... the most popular wireless charging standard, Qi, has recently been updated to allow a version of this to be implemented in compatible devices. The result is that the charging range has increased to a princely four centimeters."

http://mentalfloss.com/uk/physics/26648/how-does-wireless-charging-work-and-is-it-actually-safe