Ok , the tk60 can take 4 alkaline d cells, that's 4x1.5v = 6v
Or, one can use hi-capacity nimh d cells
The tenergy 10000mah nimh d cells are 1.2v each, 4x1.2v= 4.8v
So if I add another short extender tube (from the tk70), I can fit FIVE tenergy nimh 1.2v d cells in, for a total of 6v.
No...