If you mean something that is put in place with a full charge and just uses PV to trickle charge keep itself awake and alive, sure. I was thinking a scenario wh

If you mean something that is put in place with a full charge and just uses PV to trickle charge keep itself awake and alive, sure. I was thinking a scenario where something is dropped off, flies 10-15 minutes and lands somewhere to await a target. It would need many days to charge before it could fly again for ten minutes.