From Dec to Feb mine is shaded by trees (sun doesn't get to high altitude here in Winter at 42N). The battery got pretty far down, but the unit went into low p

From Dec to Feb mine is shaded by trees (sun doesn't get to high altitude here in Winter at 42N). The battery got pretty far down, but the unit went into low power mode and kept working fine, as far as I can tell. It's back up to full battery since March. I may move it up to a higher and sunnier location.