I'm in to see the response on anything better.
I've been using Eneloop
AA and
AAA for years now without any issues.
I was in the market for some Cs and Ds for kids toys and soothers and such. And I knew the adaptors that would allow the use of AAs in place of Cs just wouldn't last long. The capacity just isn't there. So after some research, I picked up some Tenergy Centura Low Self-Discharge
size C and
size D batteries. They work great and I don't have any complaints at all. No issues whatsoever. They are highly recommended. I probably have about 10 each of the Cs and Ds that I use and rotate through toys and such. Highly recommended.
After I had such good luck with the Tenergy Centura Cs and Ds, I thought I would try out their
AA and
AAA. I am no expert and don't have any official tests, but they work *almost* as well as the Eneloops. But then again, they are not quite as expensive. What I do is the good stuff that I want to last awhile, like my digital cameras and flashlights, I use the Eneloops. For the kids toys and remotes and stuff, I use the Tenergy.
This is just my opinion, but I hope that helps!