Portable Wireless solar cellphone charger

$30-250 USD

Closed

Posted

over 6 years ago

$30-250 USD

Paid on delivery

LED Indicator Lights: It should have 4 power indicators (25%, 50%, 75%, 100%) so you know how much power is available.... An LED flashlight that works perfectly in darkness, especially for emergency. Compact size design for portability.... Weight about 0.2kg. Not bulky. The rubber oil paint surface process allow it have Rain/Dirt/Shockproof feature to protect it. Solar Panel Charger : can store 500% of the average smartphone's battery life. *ZeroLemon 26800mAh Solar *Solar Panel Build-in 5000mAh Lithium Polymer battery which chareges via a 1.2W monocrystalline solar panel ; 2.1A output allows for simultaneous charging of your devices. Compatible with most kinds of 5V USB-charged devices iPhones,iPads,Android phones,Samsung, PSP, GPS Units, Digital Camera,etc. It should also have a port to be able to charge it using electricity when the weather is cloudy. That's a Backup)

Electrical Engineering

Electronics

Embedded Software

Software Architecture

Software Testing

Project ID: 15165746

About the project

9 proposals

Remote project

Active 6 yrs ago

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9 freelancers are bidding on average $772 USD for this job

@DamithaKD

Hi, We have desinged 3 power banks, 2 Wireless chargs and over 10 Mppt Desings. we can design this for you :) can we talk about the project ? Relevant Skills and Experience We have 3 Software Developers, and 2 Electronics Engineers. and over 12 years experience in electronics and software development please check our profile for past work and reviews Proposed Milestones $2222 USD - lets talk about the project first

$2,222 USD in 3 days

4.9

(57 reviews)

7.0

@seshupower

Hi, I am a post graduate power electronics engineer and having very good industrial experience of 8+ years in R&D and project development. I am excellent welding power supplies design, high frequency transformers design, solar grid tie transformers,electrical vehicles design, circuits design, multi-channel LED Drivers, Regulated power supplies design with universal input to DC output, Audio amplifier, drives design, Filters design for harmonic analysis and Power factor correction, SMPS, LED drivers, DC-DC, AC-DC converters design, PFC interleaved boost converter, Battery management system, Battery chargers, UPS design, sine wave Inverters, solar grid tie inverters, Solar battery chargers and street light systems design from few watts to KW range using Buck, Boost, and Buck –boost, Interleaved boost/buck, Fly back Push Pull and H-bridge inverters. I have very good experience to design high voltage power supplies up to 50KV for capacitor charging power supplies using soft switching topologies. I have work experience to design from few watts to KW range meeting all compliances like EMI/EMC and safety standards UL etc.

$3,333 USD in 100 days

4.9

(61 reviews)

6.7

@amelectronics

Hello I have experience in designing electronics circuits and can make your project. I will make your project practically on breadboard and will provide you circuit, code and PCB design. Thanks Relevant Skills and Experience Circuit Designing Electronics Arduino Programming Microcontrollers Designing PCBs Developing compatible android apps Proposed Milestones $150 USD - Deliver the project.

$150 USD in 7 days

4.9

(36 reviews)

6.4

@joshuavaldes

I could make you parts list and estimate of design time to make a prototype, for the bid price Stay tuned, I'm still working on this proposal.

$222 USD in 3 days

4.9

(2 reviews)

4.3

@Biplab62

since the requirement of this project is 26800 mAh battery, this increases the over all cost significantly. Relevant Skills and Experience I have quite a experience with both solar panel and wireless charging. so i think it would be done within 10 to 12 days from my side. Proposed Milestones $155 USD - solar panel, battery and flash light along with external charging capability. I would like to know why such a powerful power bank is required and in which field?? Thats al...l

$155 USD in 12 days