Max Discharge: 3.0 Amps Continuous (single battery only) 5.0 Amps Pulse (2 sec on / 8 sec off)
Max Rev Current: 2 uA
Typical Li Content: Less than 1 gram
Typical IR: 90 to 160 milliohms (depending on method)
Shelf Life: 15 years at 21°C
This battery handles load very well. Notice that the unloaded voltage for lithium batteries is 1.8 volt.
I am not that impressed with the 11x longer specification, you must compare to some really bad batteries for this to be true.
Up to 1A the capacity is nearly constant and even at 3A it can deliver energy.
The 3A curve starts with a dip, then it raises again, when the battery gets warm.
Due to the higher voltage, it has more energy than alkaline.
This battery is very impressive at high current, but at low loads it is not much better than alkaline batteries (Except it does not leak). The batteries have a very long storage time and can be used in very cold weather.
These batteries cannot always replace alkaline, some equipment depends on the weak high current ability of alkaline!
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.
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.