These battery reviews are nice
It would be cool if you could combine few of the discharge curves of Alkaline, NiMH and Lithium into one for easy comparison.
These AA Li-ion primary cells are also known in the trade as Energizer Ultimate L91 AA
(check carefully for a tiny ’L91” printed sideways on the mid-cell in the fourth battery picture from the top post).
Confusingly, Energizer is also marketing a cheaper range of look-alike cylindrical, lower mAH capacity,
1.5V primary Li-ion batteries, known as Energizer Advanced Lithium.
Summary of current Energizer Li-ion cylindrical 1.5V primary (throw-away) battery line-up:
Energizer Advanced - EA91 - AA - max discharge 1.5 A continuous
Energizer Advanced - EA92 - AAA - max discharge 1.0 A continuous
Energizer Ultimate - L91 - AA - max discharge 3.0 A continuous (as reviewed here)
Energizer Ultimate - L92 - AAA -max discharge 1.5 A continuous
I’ve tried them against the Chinese “Nice” brand lithium primaries (from FT at about $1 a pop) and for the life of me, I can’t see a lick of difference. I wouldn’t be a bit surprised if they’re the same battery with a different wrapper.
I keep a good stash of them as well. I hate alkyleakers. Eneloops or lithium primaries for me, please.
No, the “Nice” lithium batteries only have manufacturing date printed on them. They are also physically little different so they are completely different product from the Energizers.
The last batch I got show what appears to be a manufacturing date of Mar. 2013, with the comment “Period of validity 15 years”….“Guangzhou Nice Battery Tech Co Ltd.” They just came in shrink wrapped pairs. I bought both AAs and AAAs - both seem to have run times identical to the Ultimate Lithium cells we get here for a whole lot more money.