My father needed D Cell batters for his flashlights but the problem is he went a few days late after the panic. NONE nowheres NO D cell batteries at all....The strange thing tho is AA and AA Are as abundant as if there was nothing at all that they powered in this world. I have narrowed my battery usage down to AA and AAA but i guess most the world is still alittle slow to roll on the simplicity and abundance of this.