Recharge a 9V NiMh battery with a Solar Panel / Constant Current Generator

Hi guys, if you enjoyed the previous post solar-powered Arduino board, you should keep reading this one as well to improve your solar power generator. In fact, with that setup the 9V battery would decay too soon: A NiMh (Nichel - metal hydroxide) battery must be recharged with a constant current generator, a solar panel …

Solar-Powered Arduino Board

Components Arduino Duemilanove Board 12V Solar Panel 1N4007 Diode 25V 100uF Capacitor 9V Rechargeable Battery and connector A breadboard and some wires (suggested red and black) A multimeter to measure tensions 1) Green Power Arduino datasheet suggests us to power it with 6-20V, being aware that the upper limit could be dangerous. It seems that …