Initial steps you can take if your Embr Wave doesn't seem to be charging.
There are several reasons why your battery may not be charging:
The micro USB port may be dirty. Use a cotton swab to gently clean and remove any debris that might have accumulated.
The outlet or USB power source may not be working. Try another power source.
The micro USB cable may be faulty. Try another micro USB cable if you have one for a phone, e-reader, or other device. (If you don't have another cable, they are easily available at most stores for $5-$10.)