Charge your mobile with knee-brace of the future

A knee brace that generates enough power to charge your mobile phone as you walk has been developed by scientists in the US and Canada.

The brace can harvest the energy from knee movement and convert it to electricity. Even a walk down to the shops can generate up to 13W, enough to power 30 minutes of talktime on your mobile.

We humans are a rich source of energy. "We're pretty effective batteries," says Dr Arthur Kuo of the University of Michigan. "In our fat we store the equivalent of a 1,000kg battery."

This energy can be harnessed to power all sorts of devices such as mobile phones and SatNav devices. This is achieved by a system called 're-generative braking' already used in hybrid-electric cars like the Toyota Prius.

'Re-generative braking' collects the dissipating energy caused by braking and channels it to the battery. The knee brace effectively does the same thing by collecting the energy expended by taking a step and channelling it to your mobile device via the knee brace.

"Walking is a lot like stop-and-go driving," explains Dr Max Donelan of Simon Fraser University in Burnaby, Canada. "Within each stride muscles are continuously accelerating and decelerating the body."

Designed primarily to help amputees, the knee brace is quite large and a bit cumbersome, but scientists hope to release a lightweight, slimline version in about 18 months.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Bob Cree

PC Advisor
Show Comments

Cool Tech

Toys for Boys

Family Friendly

Stocking Stuffer

SmartLens - Clip on Phone Camera Lens Set of 3

Learn more >

Christmas Gift Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Aysha Strobbe

Microsoft Office 365/HP Spectre x360

Microsoft Office continues to make a student’s life that little bit easier by offering reliable, easy to use, time-saving functionality, while continuing to develop new features that further enhance what is already a formidable collection of applications

Michael Hargreaves

Microsoft Office 365/Dell XPS 15 2-in-1

I’d recommend a Dell XPS 15 2-in-1 and the new Windows 10 to anyone who needs to get serious work done (before you kick back on your couch with your favourite Netflix show.)

Maryellen Rose George

Brother PT-P750W

It’s useful for office tasks as well as pragmatic labelling of equipment and storage – just don’t get too excited and label everything in sight!

Cathy Giles

Brother MFC-L8900CDW

The Brother MFC-L8900CDW is an absolute stand out. I struggle to fault it.

Luke Hill

MSI GT75 TITAN

I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Featured Content

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?