Did you take the battery pack apart and find a "special" electronic circuit?Alkaline D-Cells?Why not rechargeable batteries?
No, I did not find anything special. Thus the mystery grew deeper for me
A direct short of a 4S6P Pack of D-Cells could generate, up to, 60 AMPS !Short Circuit protection is not optional.
I like the idea of using conductive glue as opposed to soldering the wires, but otherwise the project would be about 24 D cells wired up in a series/ parallel configuration to supply an output voltage of 6 volts.
Fairly obviously because this is for long-term deployment - most rechargables have shortself-discharge times compared to the shelf life of primary cells.
Or what this "special" piece of electronics included in the commercially available pack might be?
LiOK, then I think, Non-Rechargeable Lithium Batterieshave one of the longest Shelf-Life ratings, 10 Years or more.One Non-Rechargable Lithium 3.6V vs two Alkaline 1.5v ?The OP needs to weigh the Cost vs Shelf Life vs Energy Density, etc ...
This battery pack will be powering two small peristaltic pumps, so I've been advised to stick with alkaline batteries as opposed to using lithium. I'm assuming lithiums do not hold up as well when driving motors, and do better with smaller loads?