Looking for a "medium" power solar PV supply (with battery back-up) - on the order of 5-10W or so.
With battery monitoring - "gas gauge" or whatever.
For a remote-monitoring unit - cellular comms.
It seems to me that there are lots of "high" power solutions available - 50W and up - and a lot of interest in very "low" power "energy harvesting" applications; but not much in this "middle ground"...
Any ideas...?