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Solar Li-Ion / LiPoly Charger
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Status: UNTESTED, UNSUPPORTED. DO NOT USE.
License: Creative Commons, Attribution-ShareAlike
http://creativecommons.org/licenses/by-sa/3.0/
Based on design by Adafruit Industries
http://ladyada.net/products/usbdcsolarlipo/
http://www.adafruit.com/products/390
https://github.com/adafruit/USB-DC-Solar-Lithium-Ion-Polymer-charger
Changes from original design:
* Inputs via two 2.1mm DC jacks (vs one 1.3mm jack and USB)
* Both inputs protected by diodes (vs only one)
* Fast charge current pre-configured to 1000mA (vs 500mA)
* JST jacks replaced with vertical insertion types
TODO:
* Replace 4700uF cap with two 2200uF SMD capacitors in parallel
* Replace THERM with actual thermistor, and set R4/R5 to set temp range to -20 ~ 60C