Test / Review: Energizer Ultimate Lithium AA

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HKJ
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Test / Review: Energizer Ultimate Lithium AA

Energizer Ultimate Lithium AA

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Official specifications (The second part of the specification is from datasheet):

  • Last up to 9x longer in digital cameras (versus Energizer® MAX®. results vary by camera.), which means 9x less waste
  • Weigh 1/3 less than standard alkaline batteries
  • Perform in extreme temperatures from -40°F to 140°F
  • Hold power for 15 years when not in use
  • Leak resistant construction
  • Classification: "Cylindrical Lithium"
  • Chemical System: Lithium/Iron Disulfide (Li/FeS2)
  • Designation: ANSI 15-LF, IEC-FR6
  • Nominal Voltage: 1.5 Volts
  • Storage Temp: -40°C to 60°C (-40°F to 140°F)
  • Operating Temp: -40°C to 60°C (-40°F to 140°F)
  • Typical Weight: 14.5 grams (0.5 oz.)
  • Typical Volume: 8.0 cubic centimeters (0.5 cubic inch)
  • 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



Energizer%20Ultimate%20Lithium%20AA-info

This battery handles load very well. Notice that the unloaded voltage for lithium batteries is 1.8 volt.

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I am not that impressed with the 11x longer specification, you must compare to some really bad batteries for this to be true.

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Energizer%20Ultimate%20Lithium%20AA-Capacity

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.

Energizer%20Ultimate%20Lithium%20AA-CapacityTime

Energizer%20Ultimate%20Lithium%20AA-CapacityTimeHours

Energizer%20Ultimate%20Lithium%20AA-Energy

Due to the higher voltage, it has more energy than alkaline.


Conclusion

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!



Notes and links

How is the test done and how to read the charts
Comparison of AA battery chemistries

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

Edited by: sb56637 on 10/06/2015 - 15:35
ryansoh3
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Excellant review!

Thanks for pointing out that these are not any better than alkalines at low currents, except that they don’t leak.

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HKJ
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ryansoh3 wrote:
Thanks for pointing out that these are not any better than alkalines at low currents, except that they don't leak.

They are not much better. They have higher voltage and slightly higher capacity at low current.

I did forget to include that in really cold weather, they are much better.

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

ryansoh3
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Oh right, these are much better at colder temps, forgot about that as well. Smile

All my high current AA applications are handled by Eneloops and low current ones by alkalines, so I guess these don’t fill a big niche.

I do like to take this apart and have fun with the lithium inside. (Don’t try this!)

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jacktheclipper
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I keep a big supply of these .

You never know ...

Blinky1
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These battery reviews are nice Smile
It would be cool if you could combine few of the discharge curves of Alkaline, NiMH and Lithium into one for easy comparison.

ryansoh3
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Blinky1 wrote:
These battery reviews are nice Smile It would be cool if you could combine few of the discharge curves of Alkaline, NiMH and Lithium into one for easy comparison.

Here you go:

Source: http://lygte-info.dk/info/ComparisonOfAABatteryChemistry%20UK.html

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Blinky1
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ryansoh3 wrote:

Here you go:

Source: http://lygte-info.dk/info/ComparisonOfAABatteryChemistry%20UK.html

Oh, thanks! I found this one interesting too:

Bort
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I’m confused by depending on weak high current of alkalines

The Journal of Alternative Facts TM

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__philippe
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Blinky1 wrote:
These battery reviews are nice Smile

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

Mfr Data sheets:

http://data.energizer.com/PDFs/ea91.PDF
http://data.energizer.com/PDFs/ea92.pdf
http://data.energizer.com/PDFs/l91.pdf
http://data.energizer.com/PDFs/l92.pdf

Cheers,

__philippe

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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.

HKJ
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Bort wrote:
I'm confused by depending on weak high current of alkalines

Some lights depends on the batteries limiting the current. Lithium batteries has higher voltage than both alkaline and NiMH, even at 1A.

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

THE_dAY
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Thanks again for great review HKJ!

I wish more companies made lithium primaries in AA and AAA, is this because Energizer has a patent?

Yeah in things like tv remotes and clocks, these aren’t worth it over alkalines.
But for our lights these things are awesome.

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Tumbleweed48 wrote:
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.


That’s interesting, do those Fasttech ones have expiration dates similar to these lithiums?
I wonder if they are old batches?
Bort
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HKJ wrote:

Bort wrote:
I’m confused by depending on weak high current of alkalines

Some lights depends on the batteries limiting the current. Lithium batteries has higher voltage than both alkaline and NiMH, even at 1A.


how do they limit the current?

The Journal of Alternative Facts TM

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THE_dAY wrote:
Tumbleweed48 wrote:
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.


That’s interesting, do those Fasttech ones have expiration dates similar to these lithiums?
I wonder if they are old batches?

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.

Tumbleweed48
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THE_dAY wrote:
Tumbleweed48 wrote:
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.


That’s interesting, do those Fasttech ones have expiration dates similar to these lithiums?
I wonder if they are old batches?

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.

HKJ
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Bort wrote:
HKJ wrote:

Bort wrote:
I'm confused by depending on weak high current of alkalines

Some lights depends on the batteries limiting the current. Lithium batteries has higher voltage than both alkaline and NiMH, even at 1A.

how do they limit the current?

Look at the curves for alkaline, when drawing more current the voltage will drop more.

My website with reviews of many chargers and batteries (More than 1000): http://lygte-info.dk/

MRsDNF
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Thanks HKJ. The eleven year life span look impressive. I wonder if different temperatures affects this?

My current and or voltage measurements are only relevent to anything that I measure.

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Milan
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THE_dAY wrote:
Thanks again for great review HKJ!

I wish more companies made lithium primaries in AA and AAA, is this because Energizer has a patent?

Varta, GP, Camelion, Ansmann, Raver, Philips

StorminMatt
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THE_dAY wrote:
I wish more companies made lithium primaries in AA and AAA, is this because Energizer has a patent?

As I understand things, this is indeed the case in the US, but not in other countries.

Without lamps, there’d be no light.

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Thanks a lot for the review! Frontpage’d and Sticky’d.

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Milan wrote:
THE_dAY wrote:
Thanks again for great review HKJ! I wish more companies made lithium primaries in AA and AAA, is this because Energizer has a patent?
Varta, GP, Camelion, Ansmann, Raver, Philips

don`t forget Panasonic and Fujitsu Smile

StorminMatt
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ryansoh3 wrote:
All my high current AA applications are handled by Eneloops and low current ones by alkalines, so I guess these don’t fill a big niche.

One niche that these batteries can fill is emergency use in high current applications. If you can’t recharge your NiMH batteries, and alkaline batteries just don’t have the oomph, these are a good choice. This is especially true for digital cameras, which are notoriously bad with alkaline batteries (and for which L91 lithiums are actually MUCH more cost effective).

Of course, resistance to leakage is also a good use for L91 batteries as an alkaline replacement. Certain devices may not need the higher current capabilities of lithiums. But if the replacement cost of the device is very high, Energizer Lithiums can be a good choice. A good example here would be expensive multimeters and other electronic instruments. Current demand is low. But the last thing you want is leaking alkaline batteries in a Fluke.

Without lamps, there’d be no light.

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I’ve noticed that the packaging of new Energizer Lithium’s says they have a shelf life of 20-years.

Did they change anything, or is the shelf life realistically better than the 15-years they’ve advertised in the past???

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Has anyone tested the Tenergy primaries side by side with the Energizer?
I bought a few AAA’s to do a test vs alkaline, but its a non-scientific test.
However it proved to me that energizer AAA alkaline die quicker than Tenergy Lithium AAA in my GMRS radio.
One set had to be replaced every 1.5 – 2 hours. The other lasted over 4 hours, and still has juice.

Anyone wanna get some solid numbers for a vs like an old member did here for li-ions?

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DuraCell Alkalines now advertise a life of 10 years. Not sure if the extra money is worth another decade...I just rotate my stock.

Rats, finally sold my 2010 509hp Mustang...now I can buy more lights!

Sold the red one too! Now guess what I drive, doing my penance for 500 hp commuters...

http://dreammustang.com/

http://i884.photobucket.com/albums/ac47/Ha