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Solar backpack / Removable solar panel/Charge on the go /USB solar charger/ Go green/Camping/Hiking/Outdoor
Solar backpack / Removable solar panel/Charge on the go /USB solar charger/ Go green/Camping/Hiking/Outdoor
Solar backpack / Removable solar panel/Charge on the go /USB solar charger/ Go green/Camping/Hiking/Outdoor
110 backers pledged $11,649 to help bring this project to life.

About

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SunPack: A backpack with removable solar charger

$11,649

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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.

6e9b35c8e70314a614193d4f9af70fca original.jpg?ixlib=rb 1.1

Prototype Gallery

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

 Do a lot of biking or hiking and want to make sure all your electronic devices stay charged?  You are already out in the sun with a backpack, might as well use all that free energy beaming down on your pack.  Let`s meet our new solar gadget-- SunPack, a backpack designed to keep your devices charged everywhere.  You can use SunPack to run electrical devices such as tablets , mobile phones, smart watch, GPS, and other USB gadgets.

SunPack can be for anybody, for outdoor activities or daily business use. SunPack is a backpack with added benefits: a removable solar panel which can provide power source when you need it most. It may save people's life some day when they are in the wild and lost all the power. If you have SunPack, you can charge your phone and at least to send help signal out as long as the sun is out. 

Go Green with SunPack-- Using solar energy to charge your devices
Go Green with SunPack-- Using solar energy to charge your devices

  Never worry about running out of phone battery when you are taking pictures for cute kitty ! :)

We are Flextech Solar Gadgets team, specialized in different types of solar applications. This is our 4th Kickstarter campaign of solar gadgets, we have successfully delivered 2206 pieces of solar products to our crowdfunding backers from 68 countries over the world. 

'' I absolutely love this portable solar charger! You kept your promise and produced a superior product...I don't know of any system currently available that even comes close to this solar charger. Thank you for keeping your promise to me and all the other people who took a risk and pledges your product. I wish you all the best success for this and all the other products you create. Thank you so much, I KNOW that one day, you will receive a post where this saved the life of someone stranded somewhere. YOU GUYS ROCK!!!!'' --- Review from previous campaign.

 Backpack details` introduction by Andrew

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  • Advanced solar technology with ETFE film coating+ integrated laminating +  dimple surface

1) Dimple surface does not reflect the light , captures more sunlight and increases 5% solar absorption rate. It offers excellent efficiency in terms of light to electricity conversion.

2) Non-adhesive surface properties. The dirt, dust and many other pollutants are less likely to contaminate the surface of panels. When this kind of contamination occurs, a damp cloth will typically remove these particles to avoid blocking sunlight from reaching the solar panel.  Also it`s stain-resistant .

3) ETFE film coating on the solar panel. A key benefit of ETFE (Ethylene Tetrafluoroethylene) coated solar panels is that they are super durable & lightweight. And the ETFE coating provides a thin 2mm layer of protection and UV resistant. It`s durable with long lifespan .

Solar Panel Surface Detail
Solar Panel Surface Detail

 The below two projects are the representatives of applications of ETFE (Ethylene Tetra Fluoro Ethylene) film material.

This feature is the same as Powerleaf, check below to watch the test videos. 

https://www.kickstarter.com/projects/flexsolar/powerleaf-intelligent-solar-charger-with-a-grade-m/posts/1650979

  • Devices charged by SunPack 
SunPack Charge Your USB Devices
SunPack Charge Your USB Devices
  • Solar charging function test
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  • Features integrated 3500mAh battery in the backside of 5.3W solar panel .

Why is an integrated battery necessary for the backpack solar charger?

Based on the past test experience and clients` feedbacks, the solar charging performance will be influenced by the angle of the solar panel. When on the move , the angle is always changing, so we design charging the battery and using the battery as a buffer between the solar panel and the smart phones.

The third prototype of the removable solar charger with battery
The third prototype of the removable solar charger with battery

Mobile games draining your battery? Or need to make that important call and your mobile phone is almost dead? Fear not: SunPack’s external USB port is all you need. It`s external USB charger port with built-in charging cable offers a more convenient and easier way to charge your phone, tablet and other electronic devices.

SunPack internal hidden cables
SunPack internal hidden cables

 With SunPack on your back, you will never again have to worry about driving a bike or ridding a cycle during night. Reflective panels make you an easy target to spot from a distance.

 The SunPack RFID-shielded pocket will keep your personal data safe and secure. RFID Technique: Radio Frequency Identification technology, through radio signals to identify specific targets and to read and copy electronic data. Most Credit Cards, Debit Cards, ID Cards are set-in the RFID chip, the RFID reader can easily read the cards information within 10 feet (about 3m) without touching them. This pocket of SunPack is designed to protect your cards information from stealing with blocking material of RFID shielding technology.

 Equipping with password lock to help prevent theft and keep your wallet and other items inside secure while travelling. For example, there is no need to worry about the zipper pockets are opened when you line up. At the same time, never worry about that the fixed lock will be lost, it's convenient and safe for you. 

 More compartments, more storage, better organization -- you can have it all. The SunPack solar backpack has compartments for all your office essentials from stationery pens, notebooks and external hard drives, to documents, your passport, keys, USB drives, cables and laptop chargers.

  Open every door easily and don`t lose your keys at inconvenient times !

 1. PLUG 6.1W solar panel -- For solar charger starters to try , DIY solar gadgets, emergency preparation.

PLUG 6.1w For Flextech Supporters
PLUG 6.1w For Flextech Supporters

For details: https://drive.google.com/open?id=1ujiptd5OAW-_E4KP9RValqI9ROHARyCY

2. Powerleaf+14w solar charger --For solar charger professionals,  good feedback of performance and quality

Powerleaf+ 14w Dual Ports Solar Chargers
Powerleaf+ 14w Dual Ports Solar Chargers

For details: https://www.kickstarter.com/projects/flexsolar/powerleaf-a-solar-charger-perfect-for-outdoor-enth?ref=user_menu

Development history of Flextech solar bags
Development history of Flextech solar bags
Solar panel materials
Solar panel materials
Circuit board of battery
Circuit board of battery
Backpack drawing
Backpack drawing
Make a Pledge and Support SunPack on Kickstarter !!
Make a Pledge and Support SunPack on Kickstarter !!
            
 

Risks and challenges

This is our 4th Kickstarter campaign of solar gadget, through previous campaigns, we understand that backers bear risk with us and make a pledge, we know how hard to successfully handle with every part- including product design, manufacture , package, delivery, service.....even every piece of material we choose... Now SunPack product design is in the final stage, our current prototype is with function, but we need to make new molds and final moldfication, such as imporove the material quality of the stand and do more tests of the charging indicator, also bring SunPack to massive production.
Some ricks and challenges are:

1. Shipping date: We have built in extra time for the manufacturing process and are confident we will ship by the projected dates, but there is always a chance that things will take longer than planned.
2. Product changes: Slight changes may be made based on more product testing and kickstarter community feedback. We'll only make changes that enhance the product experience.
3. Small components unexpected shortage can happen. In that case, we will inform you and do our best to solve the problem.

Please also feel free to let us know your concerns, we look forward to hearing from the Kickstarter community.Thank you for your support!

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Support

  1. Select this reward

    Pledge $17 or more About $17

    Flextech Supporters( US SHIPPING FREE )

    Include a piece of 6.1W PLUG USB solar charger. As a thank you for your support to Flextech solar gadgets, we'll send you a little solar power in return. USA SHIPPING FREE !!

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    Pledge $59 or more About $59

    Super Early Bird--SunPack solar backpack

    1 SunPack solar backpack( Backpack+solar charger+battery 3 in1). We appreciate the first batch of supporters so much, this special one is just for initial 100 supporters. A big thanks to you.

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    Pledge $65 or more About $65

    Early Bird--SunPack solar backpack

    1 SunPack solar backpack. (Backpack+solar charger+battery 3 in1)

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    Limited 14 backers
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    Pledge $70 or more About $70

    Kickstarter Special--SunPack backpack

    1 SunPack solar backpack. (Backpack+solar charger+battery 3 in1), Estimated retail value is $99.

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    1 backer
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  5. Select this reward

    Pledge $89 or more About $89

    Solar Gadgets Pack-Powerleaf++Plug

    1*Powerleaf+ 14w solar charger and 2*Plug 6w solar charger

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    3 backers
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  6. Select this reward

    Pledge $118 or more About $118

    Double Pack--SunPack solar backpack

    2*SunPack solar backpack (Backpack+solar charger+battery 3 in1), get one more for your friend, and share the enjoyable charging experience with each other.

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  7. Select this reward

    Pledge $124 or more About $124

    SunPack + Powerleaf+

    1*SunPack solar backpack + 1* Powerleaf+ solar charger

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    Limited 3 backers
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  8. Select this reward

    Pledge $135 or more About $135

    Double Pack+Plug

    2*SunPack solar backpack+1*Plug 6w solar charger

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    1 backer
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    Pledge $285 or more About $285

    Family Pack-- SunPack solar backpack

    5*SunPack solar backpack

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    Pledge $429 or more About $429

    Group Pack-- SunPack solar backpack

    8*SunPack solar backpack

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    Pledge $1,200 or more About $1,200

    Customized Pack-- SunPack solar backpack

    20* customized SunPack solar backpack with your unique Logo and color. Buy for your company, team, or outdoor club.

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Funding period

- (38 days)