Wireless Power: What Will You Use It For?

After many false starts and a few outright frauds, it looks like there is a viable power delivery via radio waves in the offing.

The claim? To be able to charge multiple mobile devices within a thirty foot radius without wires.

The product is called Watt-Up and the company Engergous. Here's a demo or two:

Next big thing, 2017?


How does this relate to the much hyped uBeam?

uBeam is ultraSound and short(er) range:

Btw, Energous is already a public company, so there is more info, like:

Source: seekingalpha

Being the top end power for this tech is 10 watts or less within 15 feet, the number of applications are pretty limited.

ie: 10 watts/12 VDC = 833 mA, or 10W/24VDC = 416 mA

Think of really weak batteries, but worse.

Run a camera or two though, no?

Another thing, this spreads its power in a 360 pattern, higher power and longer range could be achieved by using directional beams. As long as you don't fry anyone in between...

Being the top end power for this tech is 10 watts or less within 15 feet, the number of applications are pretty limited.

How about never having to charge your iPhone or IPad again?

Think about it for residential wireless though. Imagine a Drop Cam that you can literally stick on the wall and forget about... wireless power coming in, wireless signal going out. How many consumers will jump on that? A baby monitor camera that you don't have to worry about a cord falling into a crib and choking the baby? A front door camera or intercom on a brick facade or arched doorway that's impossible to get a cable to?

I used to work a lot with law enforcement and covert items and the dream of a true 'James Bond' wireless device that wouldn't be limited in size or battery power was something we always wanted. The range needs to grow a little bit, but it's on the right track. The capacity doesn't really bother me all that much. Think of anything small that runs on batteries, that isn't really well suited to being AC powered... and you have a candidate for this. Starbucks I bet is the first adopter of this, until they get bought out by Google and integrated into Drop Cam

I just want to be able to shoot lightning bolts out of my eyes.

How about using this technology to send power to (or recharge) wireless door locks? Build the transmitter into the wall unit and 'beam' power to a wireless lock set? How would you like to never have to change batteries, especially on high activity lock sets? Think that Schlade would benefit from that?

Similiar to Wireless Door Power (Securitron ICPT)?

(Up to .5A@12VDC)

Another company Xe, claims 16 foot charging radius.

Artist conception of what the $200 device would look like.

From a former Ubeam Engineering VP's post on Energous FCC approval:

to have done the bare minimum to get an approval on a essentially pointless and impractical device that doesn't actually charge at a noticeable rate, but that turns the charge light on, and as it's such a technically complex issue very few people understand what it means, see "FCC Approval", and that's it.

  • Fails to charge a phone with a measly 100 mW at best (about 10x lower than needed)
  • Unsafe for humans or animals closer than 50cm
  • Highly inefficient, around 99% loss

I don't know enough about the space or Energous to comment but found this relevant to this discussion.

It’s probably just “Big Oil” throwing shade to protect their hegemony ;)

Fails to charge a phone with a measly 100 mW at best (about 10x lower than needed)

Wondering what it would take to keep the batteries on an Arlo or Blink charged.

Very Smart (bidirectional data flow) Encrypted credentials (fobs) to replace RFID....

(If nobody (ahem HID) else has registered this idea with USPTO, I hereby claim to be the 1st :)

Also receiving FCC approval was Powercast, claiming to be able to charge home automation sensors up to 80 ft away, and products in Q3.

Development kit in stock at mouser for $1250.