I am not currently using any recharchables but I am considerering them for my Reconyx, since that's what they recommend. I have kind of been going back and forth on using recharchables vs. lithiums. I am curious why you would want to go to the expense of recharchables since a set of d-cells will last 5-6 months in an I-40. Not criticizing, just curious.

Blessings.....Pastorjim