DIY Portable USB Solar Charger ($20 – 4 Ports)
I have so many uses for it. When we travel and go camping, it serves us an unlimited supply of charging power for our handheld devices, such as iPhones, iPads, Speakers and Android Devices. It can charge anything! Anytime, anywhere! When an outrageous storm comes in, blackouts are inevitable, it’s a good thing to have a solar charger!
By the help of of our trusty USB powerbank, charging during night time is possible, it acts as a battery reservoir, and charges during day.
It only takes 40-120 minutes to fully charge your powerbank, and it also comes with a 4 bar battery indicator!
It’s a sustainable + reliable source of energy, ideal for charging USB devices.
– 10 Volt 3W Solar Panel (Water Proof – Shock Resistant)
– 2800mAh PowerBank (2A Output – iPhone 5 compatible)
– Self-sustainable – Close to Unlimited USB Power 😀
Also, please support and visit my site: ASCAS.ph (incompatible with IE -Under Renovation)
Enjoy Reading 😀 Cheers!
Step 1: Tool & Materials
My Parts – (w/ Alternative Links):
1.) Solar Panel (mine= 10V 400mAh | 3W)
2.) USB PowerBank (2800 mAh – w/ battery indicator)
3.) 4 Port USB Hub
5.) 7805 Regulator Chip
6.) Micro USB Cable (A stripped end)
7.) Leatherman Multitool (from: Instructable Prize)
8.) A short length of stranded wire.
9.) Superglue (Gorilla or MightyBond)
Step 2: Choosing Your PowerBank (Optional Step)
You can chrage your powerbank even if devices are plugged to it. You can skip this step, if you already have a powerbank 😀
The Price List:
1.) 2600mAh External Battery Mobile Power Bank ($6.30)
2.) Compact 3000mAh Portable Rechargeable Power Bank w/ LED Indicator ($9.20)
3.) Power Bank Aluminum Alloy Housing Case w/ Protective Board ($10.40)
4.) Ultrathin External 4000mAh Power Battery Charger w/ Touch Control ($14.30)
5.) Ultrathin External 4000mAh Power Battery Charger w/ Touch Control (Black Edition $14.30)
Step 3: Soldering The 7805 Regulator
1st.) Follow the simplified schematic diagram above, read them carefully!
2nd.) Solder the micro USB plug first, to the 7805
3rd.) Solder two wires on your 7805, to be connected to your solar panel (+ & – )
4th.) Use a small droplet of superglue to mount the regulator in your solar panel’s terminal block.
6th.) Trim the heat-sink mount of your 7805 chip if necessary.
5th.) Solder the two wires of your 7805 to the solar panel. Observe polarity! (+ & – )
FYI, The switching regulator, gets more juice from your solar panel!
Since the 7805 is limited to 1 Ampere, you might want to buy a HIGH-EFFICIENCY 5v Switching Regulator from DealExtreme.com for only ($3.80 + Free Shipping)!
OPTIONAL: You can now charge your device directly from the panel, even without the powerbank!
Step 4: Mounting Your Devices
1st.) Mount The PowerBank
2nd.) Connect the charging cable of the solar panel to the powerbank’s charge-input.
3rd.) Plug-in your USB Hub/Port to your powerbank’s output.
4th.) It’s now time to charge your devices! Just plug them in you USB Hub!
Step 5: Unleash 4 Ports of USB POWER! It’s Ready 😀
Stay tuned for more projects!
Please support and visit my site: ASCAS.ph (incompatible with IE -Under Renovation)