"AA" Size Battery to "C" Size Battery converter

Battery Case to convert two "AA" batteries to a size similar to a "C" battery. Print both parts, add metal strips or folded aluminium foil as seen in image.

Note: Despite my best attempts, the final size is slightly bigger than a "C" battery. About 4-5 mm in width and 2-3mm in length so only use if the compartment slot can accommodate this extra width and length.