ubuntu-phone team mailing list archive

[Matthias Apitz <guru@xxxxxxxxxxx>]

Hello,

>From the times with my other Linux based cellphone, the Openmoko
Freerunner, when battery life time was still a bigger issue than now
(thanks!) with r21 in our BQ, I wanted to share some detail. I bought
the pieces and put together in a small tin can of chewing gum an USB charger.
Details can be seen here: https://learn.adafruit.com/minty-boost
It has two rechargeable AA cells, some magic electronics to boost the
2.6V to 5V and can charge the phone device with it. I tested it today with the
BQ and it was able to charge the device from 77% to 96%, i.e. near 20%.
I do not know the capacity of the BQ battery, my two AA cells are of
2700 mAh.

Nice stuff and maybe someone needs it, or it can serve as a very last
resort of energy doing an emergency call in the moutains, or from where
ever :-) Mine Adafruits charger is of the year 2008 and still does fine :-)


	matthias
-- 
Matthias Apitz, guru@xxxxxxxxxxx, http://www.unixarea.de/ +49-170-4527211    +49-176-38902045
"Wenn der Mensch von den Umständen gebildet wird, so muß man die Umstände menschlich bilden."
"Si el hombre es formado por las circunstancias entonces es necesario formar humanamente
las circunstancias", Karl Marx in Die heilige Familie / La sagrada familia (MEW 2, 138)