FlexSolar has been a pioneer in solar chargers for years .Now we launch the improved USB solar charger--Powerleaf on Kickstarter.
Powerleaf is a portable solar charger for camping, travelling, hiking and emergency preparation. It can charge all your USB devices including smart phones, tablets, power banks, and other gadgets. Or you can combine it with other products, such as bags, golf cart, boat, tents.
Below are some application scenarios of FlexSolar® Powerleaf
Powerleaf can supply power for you in different environments,even in the desert and snow.
It can become a Plug and Play Solar charging system, the USB cooling fan shown here was charged by Powerleaf .
For best results, keep the solar charger exposed to sunlight when you`re charging your devices.
(Powerleaf is charging the USB mini speaker)
Compared with traditional solar chargers, Powerleaf has many highlights
When you see Powerleaf for the first time, it will catch your eyes.The appearance is very sleek and colorful. It comes in bright yellow, green& red colors which surely will brighten up your day.
Grass green, bright yellow, orange red are optional colors, please leave me a message which you prefer, or we will deliver randomly. Thank you.
PS: Black edition has been added ,please read more on update #5
- Portable and foldable
Powerleaf easily fits into your backpack.
It`s foldable at 360 degree.
- Easy to clean (update #6)
- Light and thin
The video shows the weight of Powerleaf
- Powerleaf also pays much attention to detail. As you can see the copper ring is sturdy and could be hung from a tree or support stand.Round corners prevent any chances of scratching the hand.
- Auto Restart Technology ---ensure stable charging performance.
When shadow shelters the solar panel, the charger will stop working. For traditional solar charger products , people have to unplug the USB cable and replug it, then it comes back to life. But Powerleaf solves this problem with auto restart function . When shadow leaves, don`t worry, it will automatically restart in 5 seconds and come back to charging function.
When sunlight gets stronger in the process of charging a cellphone, Powerleaf will disconnect and auto restart at a higher current to charge the cellphone
- Maximum Power Point Tracking (MPPT) function is a technique used with photovoltaic (PV) solar systems to maximize power output.The voltage regulator inside junction box has unique MPPT function. It increase the output power by 30% by controlling the charger`s output voltage at its maximum power point
- Water proof
Waterproof test, even under water, the Powerleaf can still charge the fan.
- Excellent materials
The ETFE (Ethylene Tetra Fluoro Ethylene) film has excellent ability of light transmittance and aging resistance. It not only improve the output power of solar panel but also can extend lifespan.
The below two projects are the representatives of applications of ETFE material.
Powerleaf mainly includes solar panel and junction box , It uses solar cell with high efficiency up to 23%. The volatage regulartor inside junction box is suitable for smart phones like iPhone,Samsung , Blackberry, HTC, power banks, and other electronic devices.
It`s stable 5V output voltage, without any harm to electronic devices or human body.And Powerleaf is compliant with CE and RoHS certifications, pass all the tests, ensuring your safety and health.
Moreover, Powerleaf has passed the Double 85 Test, that means it was put into the equipment with environment temperature 85 ℃, relative humidity 85%, tested for 1000 hours, the apperance and electrical performance of Powerleaf are still good without any change.
How to use Powerleaf?
Why do we start Powerleaf project ?
- To bring you conveniency for outdoor activities. With Powerleaf you don’t have to worry about running out of power when you are in the outdoor.
- To share technology fruits with you . All our competitors are still adopting the old sewing technology that needs more processes and it`s not waterproof. FlexSolar is leading the world on our unique lamination method, and hope more people can benefit from this advanced technology.
- To lower purchasing cost and make it cost-effective. Materials including solar cells and others components are cheaper when purchased in bulk .
- To do a little bit for green environment. Using renewable energy like solar power is clearly a way to diminish our dependency to fossil fuels, and is a good way to mitigate global warming by lowering the emission of greenhouse gases.
Update #7 Stretch Goal & Enjoy camping trips with Powerleaf
Update #6 Powerleaf is easy to clean, see video below
Update #5 Black edition launched
Update #3 Solar Fan System Fixed on Stroller
Update #2 DIY A Solar Bag with Powerleaf
Risks and challenges
We understand there might be unforeseen issues even for the best laid plan, however, samples of Powerleaf have been made, tested, and put into some real life situations to use. They perform very well.
Our biggest challenge will just be international logistics. we already have collaborated with the logistics company before to minimise the risks, will try our best to get these panels shipped to our backers immediately.
Please also feel free to let us know your concerns, we look forward to hearing from the Kickstarter community.Learn about accountability on Kickstarter
- (35 days)