Thanks for the nice review! I have used this model for a year, in Washington State, USA. I never move or rotate the unit, and it maintains a good reserve charge on consecutive cloudy days. One caveat- the blinking red light labeled "Fence OK" only indicates the unit is "on" and sending pulsed electricity. It does not indicate that your fence is actually working ok (e.g., if fence has a fault / grounded by an object, the "OK" light will still blink).