There are some adapters that squeeze four AA's into the D cell format. This is theoretically a little too thick, but it will fit in many devices where the battery tube is not too snug.
By pure volume a D cell is around 7x an AA.
There are some adapters that squeeze four AA's into the D cell format. This is theoretically a little too thick, but it will fit in many devices where the battery tube is not too snug.
By pure volume a D cell is around 7x an AA.