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.
I would probably get some of the LSD
Ansmann D cell or
Imedion D-cell , they are pricey initially but they will work out much cheaper in the long run.
The Ansmanns work very well with the
Ansmann Powerline 5 Charger, which will take a 12V Cigarette power Supply