Got2 cheap moultrie trail cams that are a couple years old. It costs a fortune in "D" batteries to run. Deer duty in the fall and chicken coop protection the rest of the year.

I want to dump the D's and get a rechargeable battery(s) with greater capacity. Anybody done this?

It takes 6- "D" batteries so that should be 9v...

Any tips would be appreciated.
If you can't trust people with freedom, how can you trust them with power ?