I bought a couple qi compatible chargers for reasonable price.
Black one from Amazon for $18.99 shipped Amazon.com: Lerway Wireless Qi Power Charger Pad for Lumia920 HTC 8X S4 S3 Note II (Black): Cell Phones & Accessories
And white one from eBay for $18.00 shipped http://pages.ebay.com/link/?nav=item...d=300999639262
Both perform the same, charging at about 700ma/h(had a phone on charger for 1 hour and it went from 69% to 89% on 3500mah battery).
Black one comes with pad and micro usb cord(no wall plug), white one comes with base, round plug cord and wall plug.
Black came directly from China so took just over a week to arrive. Ordered on 18th, got it on 26th.
White one came from California so took under a week to get it.
To charge a phone you just lay it on the pad. Both have led lights, but white pad has them marked better and easier to see. Black one has led but it's concealed and phone covers them up when on pad.
If I were to buy again, I'd choose white as it's cheaper, ships faster and easier to use. White you center the phone on pad to activate, black you align bottom edges to activate.
Phone gets warm when charging but nothing to write about. Once it's charged it's cool to the touch. I also have a tpu case on the phone 24/7 and it doesn't interfere with charging. The sound the phone makes isn't significant, but it lets you know when it connects and the screen has cool animation.
Also, if you have mountek or infiniapps magnetic phone mounts, the metal plates might interfere with wireless charging. I haven't tested.