Eric,
Your holders are very special in that they are very short, compared to other battery holders. So I will be offering a special 1xD package/option to match your holders, so instead of being the "1xD", it will be the "mdocod" special:
- short 1xD => 1x0.75D
- spring seat deep in the tailcap
- switch modded for flat cells for even better contact
The spring will seat deep, like the one here in the left:
Here is the short "mdocod" body, next to a regular "D" cell and your 3xAA adapter:
Here is how the "D" cells fits the short body:
Here is how your 3xAA adapter fits in the short body:
Here from left to right: "mdocod" body, short 1xD (for FM 4xAA adapters), standard 1xD (all battery combos, depending on spring used):
Thanks for making possible the shortest "D" size mag available today
Will