"James M. Knox" wrote:

Anyone with such a unit, can you verify that you can't legally just
plunk in *any* D-Cells, but rather that it has to be specific brands
(i.e. Duracell), or has to have the date listed on/with the battery?


I have the ACK unit with the D cell batteries. It requires the duracell batteries with a date code, not just
the ordinary flashlight batteries. They are good for 4 years.

Mike