Improved AA battery inserts for Duracell

Works for model: https://www.printables.com/model/452573-rugged-box-with-modular-slots-parametric-normal-he The original AA battery inserts were very tight for Duracell AA rechargeable batteries. It was 14.7mm, and I have increased it to 15.0mm. Only the battery diameter is increased, the insert dimension is still the same and it works properly with a rugged case.