Why airenergy by rca is not working for my cell phone battery?

Hi, I had a BlackBerry cell phone one month back , and I also charged it using airenergy by RCA. You were correct RCA is a small USB device which harness electrical power through Wi-Fi signals from the air. Actually what happens is whenever the device is in vicinity of one or more Wi-Fi signals the air energy starts charging. The wireless antenna signal is converted into DC from there only your small electronics starts charging such as batteries of your cell phones,etc. My BlackBerry battery took 90 minutes for charging it to 100% at 5 W-H of energy which is perhaps utilized by the air energy.

An amazing thing to be noticed is that many critics believed it's totally impossible which may be wrong as the device gathers energy when it is available and stores it on an inboard battery, which is then used to charge any device like battery of a phone. I would like to tell you that it is not the airwaves that charge the device in that time but the inboard battery, which already have stored the electrical energy in it by RCA.

So, I think you must either check the availability of your Wi-Fi signal ,may be for some reasons if its not so strong, or you should go and check the inboard battery in the device for some technical faults due to which the RCA device is not taking the charging. As you have already mentioned it above that the charging was possible with the cable but not with wireless. I am sure it is not going to be any major problem.