View attachment 39208
This was the setup. The ammo boxes I got from Menards ($5/each) and are plastic. I spray painted them and had to cut a notch for the metal cable to be able to enter the sealed box. I then used silicone caulk to seal up the notch to make sure ants couldn't get in (some did on several boxes anyways because I did a poor job with the seal). I had at one time thought about using daisy-chained batteries to increase the storage capacity. This would have been two 9 mah batteries together to provide 18 mah. I can't say for sure if it would have extended the battery lives. As it was, I had several on the 12v 9mah make it from September to March through a very cold winter. You could probably extend this if you increased battery size, but I don't have a large enough sample size to say for sure.
I am currently using the 3600 solar pack and I put all of these out in August/September in a mostly deciduous forest. So far, I have only had issues with the white flash cameras not getting enough charge from the solar panels (and this occurred in September), but these cameras were also placed in high-traffic areas. This spring/summer, I plan on adding in the 12v batteries mentioned above with a splitter that would go to the solar charger and to the camera - so that the external 12v batteries would act as a dual battery bank. I am really trying to cut down on the D batteries because I just think it is wasteful, but that is yet to be determined if it will work. Ultimately, I don't really plan on keeping cameras out for the summer months (in the timber areas) because I think it doesn't really provide that much value and the summer months seem to add a lot of wear and tear on all cameras.