In article
,
says...

Hmm... sounds interesting but the common thread that I see is that all
are only available in AAA and AA sizes. I got the C cell NiMHs so I
wouldn't have to carry several batteries with me if I decided to head
out for a long ride. I guess that plan won't work?

You can get adapters that will allow you to use a AA battery where you need
a C or a D. Check http://www.thomas-distributing.com/index.htm for almost
any rechargable need. I'll second the recommendation for the Sanyo
Eneloops. Great batteries. They (