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Convert your leg power into electricity to charge your smartphone,gps,camera,rechargeable light while you cycling on the road.
Convert your leg power into electricity to charge your smartphone,gps,camera,rechargeable light while you cycling on the road.
Convert your leg power into electricity to charge your smartphone,gps,camera,rechargeable light while you cycling on the road.
10 backers pledged AU$ 1,736 to help bring this project to life.

About

EP Charger - Pedal to charge: smartphone, camera, gps, light project video thumbnail
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EP Charger - Pedal to charge: smartphone, camera, gps, light

AU$ 1,736

10

What is a prototype?

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

Proof of Concept

Explorations that test ideas and functionality.

Functional Prototype

Demonstrates the functionality of the final product, but looks different.

Appearance Prototype

Looks like the final product, but is not functional.

Design Prototype

Appearance and function match the final product, but is made with different manufacturing methods.

Production Prototype

Appearance, function, and manufacturing methods match the final product.

D37e3e3fc36893be8a71b6284a0311df original

Prototype Gallery

These photos and videos provide a detailed look at this project’s development.

AU $1  = US $0.77 = EURO €0.73

What is a bike dynamo

A bike dynamo is an electric generator that convert mechanical power into electricity, in this case your leg power is converted into electricity. The electricity is then regulated through a charging controller to provide the same output as a normal smartphone charger. You only lose about 12W of leg power to provide the same power output as a 2000mA 5V smartphone charger.

What is EP stands for

Endless Power

Reason For This Project

As a road cyclist, I do lots of night time riding. A set of head and tail light is must have during night time riding. Built in battery power light are great. However they have a common problem - drain battery too quick. Especially the head light. 

  • The built in battery of the head light degrade in performance after 3 months of usage.
  • The battery life indicator light goes to red very quickly. What use to last an hour on of usage now only does half an hour.
  • The built in battery is hard to replace. I can only buy another set of light.
  •  I want to keep my phone, headlight, and taillight charged while cycling.
  • To be able to keep my phone and both light charge while under operation require 10W of power.
  • Most commercial dynamo system cannot produce that sort of power.
  • The look of most dynamo system is bulky, heavy and hard to install.
  • Therefore the EP Charger project was born.

 

 

 

 

 

 

 

 

 

What is EP Charger

  • EP charger is a high efficiency twin small electric generator USB charging system design for road bike.
  • It is 100% green power, it converts your leg power into electricity to charge all your electronic gadgets on your bike.
  • The EP charger is designed and built in Perth Australia.
  • 98% of the parts are CNC machined out of 6061 aluminium alloy.
  • It is environmental friendly. Save electricity and battery life of your electronic gadget: smart phone, GPS, camera, built in battery power light.
  • The whole EP charger system only weights 170g, but it can delivery whopping 10W(5V @2000mA ) of power when cycling at a speed of 24kmph(15mph).
  • It is dual USB port meaning you can connect more than one device at a time.
  • It is powerful, light weight, compact, stylish, water resistant.
  •  Easy to install, can be install in 15 minute.

Installation Video

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Upside down road bike view of the twin dynamo mounting position

 

 

 

 

EP Charger Specification

  • Max twin dynamo power output: 12 W
  • Twin dynamo weight: 130g
  • Max USB charger output: 5V 1000mA each USB port, total 5V 2000mA
  • USB charger DC input voltage: 10-55V DC
  • USB charger weight: 40g
  • Start charging output:

            8kmph    (5mph) – 100mA at 5V (0.5W)

            12kmph  (7.5mph) – 500mA at 5V(2.5W)

             16kmph(10mph) – 1000mA at 5V(5W)

             20kmph(12.5mph) – 1500mA at 5V(7.5W)

             24kmph(15mph) – 2000mA at 5V(10W)

            No high speed power cut out

 

Photos of power output vs speed

 

 

 

 

 

Photos of water resistant test

 

 

Video of water resistant test

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Video For No Load Wheel Test Spin

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5 set of early birds prototypes

 

 

Video for twin dynamo position adjustment

 

Video for detail of the 5 sets of prototype

 

Some more parts left over

9 sets of hand made new stainless steel spring for twin dynamo

 

 

 

 

 

Dynamo contacting position adjustment on a tyre

New 8 charging controller board, dynamo bridge board and  the rest of the parts

 

8 dynamo bridge board in the re-flow oven

 

CNC Machine Parts In The Factory

 

Road Test 1

 Road Test 2

 Road Test 3

 

New 20 Dynamos

 

New CNC machine parts

 

 

 

Big Frame Installed On A Big Fork

 

New 8 Charging Controller Units

 

 

 

 

Photos of big frame installation on a non road bike

 

 

 

 

New charging controller mounting bracket design for 22mm-32mm handle bar

 

 

 

Mounting bracket without charging controller

 

Mounting bracket with adapter for 22mm handle bar

Mounting bracket parts in the factory

 Mounting bracket parts have arrived

 

 

 

 Mounting bracket install on a 32mm handle bar

 

 

 

 Mounting bracket(with adapter) install on 22mm handle bar

 

 

 

 

Time Line for the next few months

Risks and challenges

There is always risk in any project. The final production is happening in Perth Australia, meaning better quality control and delivery product in time.

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Support

  1. Select this reward

    Pledge AU$ 1 or more About $0.75

    Kind Donation

    Big Thank For Your Kind Heart!

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    Limited 4 backers
    AU$
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  2. Select this reward

    Pledge AU$ 250 or more About $189

    Early Bird

    1 set of EP Charger. Worldwide Shipping is included.

    Early Bird: will deliver the EP Charger to backer as soon as the campaign is successful and ended.

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    Estimated delivery
    Ships to Anywhere in the world
    Limited 3 backers
    AU$
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  3. Select this reward

    Pledge AU$ 250 or more About $189

    1 Set Production Unit

    1 set of EP Charger. Worldwide Shipping is included.

    Will deliver the EP Charger to backer on September 2017.

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    Estimated delivery
    Ships to Anywhere in the world
    Limited 2 backers
    AU$
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  4. Select this reward

    Pledge AU$ 480 or more About $362

    2 Set Production Unit

    2 set of EP Charger. Worldwide Shipping is included.

    Will deliver the EP Charger to backer on September 2017.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Limited 1 backer
    AU$
    Kickstarter is not a store.

    It's a way to bring creative projects to life.

    Learn more about accountability.

Funding period

- (60 days)