I'm still testing the 6 cell that I have in series. I'll need to completely drain whatever battery I'm using to know how well the cells will charge the battery.
I'm hoping that I can actually charge my 12 volt 4.5 ah lead acid battery from the 6 little solar cells. But, I'm not holding my breath. I know that I can charge smaller batteries with the cells, but the Exciter needs and wants the 12 volts to run its best.
If you haven't seen Hitmanmob1 video about using the 6 garden light cells to charge a 6 volt battery, and they he runs 10 2 watt led bulbs with that set up.