Originally Posted by
ItsJustMe
I only buy LSD batteries now, because I like to have spares, and I dislike having to keep special batteries for individual purposes. I still have a pile of old batteries that will probably take me several years to wear out, especially now that I have replaced my old headlights with lights that have LiIon batteries so I'm not using nearly the batteries that I once did.
IMO a set of AA NiMHs last so long that it's worth investing in decent cells rather than just buying what you need for one specific purpose. My batteries have all outlasted whatever purpose I had in mind when I bought them.
The problem is that LSD batteries have a 20ish% shorter runtime that decent vanilla ni-mh. For high drain bike lights that can be a big difference. In any event, they're cheap enough, so why not have a dedicated set that gives you longer runtime if you need it?