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video DIY: USB-Solar Rechargeable Light & Mobile Charger
Note: A link of PDF Map and pictures of this project would be
available soon here for free download and use.
A Samimy Production
January 15th-2011
My Other Projects:
www.youtube.com/SAMIMYS
Subscribe to watch my upcoming
projects quickly.
Music From:
Stock-Music.net
A Certified Purchased
License For Samimy-Productions
A Royalty Free Track
Code: P109
Title: Fortuna:
An upbeat, energetic electronic tune with a futuristic sound-like Dr. Who gets urban.
available soon here for free download and use.
A Samimy Production
January 15th-2011
My Other Projects:
www.youtube.com/SAMIMYS
Subscribe to watch my upcoming
projects quickly.
Music From:
Stock-Music.net
A Certified Purchased
License For Samimy-Productions
A Royalty Free Track
Code: P109
Title: Fortuna:
An upbeat, energetic electronic tune with a futuristic sound-like Dr. Who gets urban.
if it actually puts out between 3.5 and 4 volt when hooked to usb or solar, then great. but a li-po like your cell phone batteries are basically considered "dead" at 3 volt.
Minor note : With three of those cell batteries in parallel (presuming parallel, since series wiring would require over around 12 volt to charge) USB should be safe enough (5volt@450mA max), as would those dreadfully underpowered solar cells(combined 3V unknown current rating, but probably under 200mA). Even USB3 shouldn't be an issue, with 900mA still being close enough to a 1C charge rate, even for smaller cell phone batteries.
However, avoid using AC-USB charging adapters for charging, as some of their current delivery can exceed a safe 1C charge rate, even in parallel battery configuration.
the solars are able to charge those cellphone batteries, using that voltage regulator,
the batteries are 3.7volts each, but they can be charged even with 2 AA size regular batteries using the 3v voltage regulator as i showed on the video.
the project works great enough, charging with usb is faster than solar.