A quick test with the meter shows I get a trickle charge on a fair day! When both panels output their maximum 50mA a 1200mAh battery will take about ...
Step 2: Panels
For each wiimote i had 2x 3v 50mA cells connected in parallel, These were mounted on a PVC pipe in a manner to allow me to twist the pipe. The windowsill would get the most light but isn't always convenient so sometimes I want rear facing panels and sometimes front.
Pairs of panels were soldered with a diode the to white (+) wire this should stop the battery discharging through the panel but allow the panels to charge the battery.