Yeah stuff those cases without battery's. AA's range in price and aren't worth it.
Here's a 50000mAh battery bank like what I have, is larger with batteries in it for $23
http://www.ebay.com.au/itm/50000-20000-1...t3jBEsxxbg
If the camera is using 1 amp per hour, you want the charging source to be replacing that 1amp
PLUS a bit more in store for the night cycle when there's no charging.
Yet ya only have maybe 1amp at 5v with those 9 cells. My guess is that eventually the battery
will fall behind at night, but start again after an hour or so of sun the next day.
I'd still be looking for some old heavy metal box to chain mount to a tree or such,
putting two car batteries in series in it (24v) with a control charger
(I have one here you can have) and sticking your good large 24v panel up a tree, roof or post
with a couple of Jaycar 5v socket do-dars hanging off the 12v battery's.