@srizbf; Myeah, when programming websites I usually "just test" and see if it works out. But atm. I only have this phone and one battery, so I would rather not just test.
I did find this - rather big - circuit which looks quite promising. Only problem is that it need 12Vdc.
Now a friend of mine did some testing and measured on his moped, same type, and it gives 6 to 12Vac depending on the revolutions.
Could this circuit be modified to accept something in that range?
https://www.shdesigns.org/pdf/lionchg3.pdf
The above circuit has tons of features, but Im gonna cut away everything I dont need, so that it charges 1 cell, 4.2Volts and 650mA or something like, that would be 0,75c.
---------- Post added at 15:59 ---------- Previous post was at 15:53 ----------
Nevermind my above post. I am gonna make it from MC34063A and limit it.. my problem was, using the design tool it said it couldn't work with 5,35Vdc but it might when I get a little more.
Just a quick question. If I supply the MC34063 circuit with less than what is needed, how will it react? Will it just not let anything out, or will it just output less power and current?