Innovative and high-quality Rofis flashlight
Page 1 of 3 123 LastLast
Results 1 to 30 of 62

Thread: Energizer e2 lithium batteries vs alkaline? pros & cons

  1. #1
    Enlightened
    Join Date
    Jun 2008
    Location
    Florida
    Posts
    30

    Default Energizer e2 lithium batteries vs alkaline? pros & cons

    I was wondering if someone could answer in words not data what advantages energizer e2 lithium batteries offer over regular alkaline cells. More specifically is the difference in both power and energy capacity noticeable to make a significant difference? Also I have read numerous threads which give various voltage readings concerning the e2 battery. The box states 1.5 volts but other sources state 1.7 or #'s between 1.5 & 1.7. I appreciate the help.

  2. #2
    Flashaholic* adamlau's Avatar
    Join Date
    Dec 2007
    Location
    Los Angeles
    Posts
    2,074

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Review the various product datasheets over at Energizer Home > Technical Information.
    强光手电是我最爱得

  3. #3
    HKJ's Avatar
    Join Date
    Mar 2008
    Location
    Copenhagen, Denmark
    Posts
    6,628

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Lithium batteries are much better at high current than alkaline, that is very important in high power flashlights.
    In real life it means that a lithium may power the flashlight for far longer (i.e. 3-4 times) than a alkaline when on full power, on low power the lithium will still win, but with a considerable smaller margin.

    Another advantage of lithium is that your can store them for very long time (10-15 years) and they will still work.

    Alkaline batteries can leak, lithium does not leak!

  4. #4
    Enlightened
    Join Date
    Jun 2008
    Location
    Florida
    Posts
    30

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Like i said in my post i'm looking for an answer in words not data jargon in the forms of graphs and statistics.

  5. #5
    *Flashaholic* Marduke's Avatar
    Join Date
    Jun 2007
    Location
    Huntsville, AL
    Posts
    10,117

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Compared to alkaline:

    They have more energy
    They can last for 15-20 years
    They work well in hot weather
    They work well in cold
    Lights will run longer AND brighter
    They weigh less
    They will not leak

    e2 Lithium cells are superior in every way except price. Their value on the other hand, IMO, easily surpasses alkaline cells.
    Last edited by Marduke; 07-08-2008 at 05:37 PM.

  6. #6
    Flashaholic*
    Join Date
    Nov 2003
    Location
    sfv, california
    Posts
    1,724

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    In my experience the energizer lithium AA and AAA are vastly superior to regualar alkalines especiially in high drain devices such as flashlights and cameras etc...

    Not so much of a difference in low drain devices such as the Tv remote control but a difference non the less.

    edit: Marduke has a better answer.

  7. #7
    Super Moderator
    DM51's Avatar
    Join Date
    Oct 2006
    Location
    Borg cube #51
    Posts
    13,341

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    I'm moving this one into the Batteries section.
    Resistance is futile...

  8. #8
    *Flashaholic* Patriot's Avatar
    Join Date
    Feb 2007
    Location
    Arizona
    Posts
    10,291

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    For me the appeal is mainly reliability and run-time. I often use these batteries in AA lights or equipment (like a GPS's) that I must absolutely rely on. They've never let me down and I can't make that same claim for alkalines.

  9. #9
    Flashaholic* HoopleHead's Avatar
    Join Date
    Dec 2007
    Location
    West Coast, USA
    Posts
    1,312

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    i always use lithium primaries.

  10. #10
    Flashaholic*
    Join Date
    Aug 2001
    Location
    VA
    Posts
    3,569

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Lithium batteries are an enviormental hazard due to the chemicals inside and should be recycled but nobody seems to take them, so they just end up leaching chemicals into out landfills.

    Todays high end Nimh outperform alkalines in high current applications and still have 70% of the capacity of Lithium. For under $50 (charger + cells) I can have a fresh charged Nimh in my EDC ever single morning for a couple years. Try that with lithiums. I'd rather have a full charged Eneloop than a half used lithium any day.

    Lithiums still have their place, where stability and long shelf are needed. Like backups in your bug out bag or in car storage for emergency use.
    EDC use = waste of money
    Light is the activity of what is transparent - Aristotle

  11. #11
    Flashaholic* TorchBoy's Avatar
    Join Date
    Jan 2007
    Location
    New Zealand
    Posts
    4,495

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    I'd say Marduke got it pretty right, although for low drain devices at normal temperatures they don't have so much advantage.

    The major disagreement I have with his comments is about their value. For particular (you might even say "niche") uses maybe they are very useful, but I go with Cave Dave's comments about low self discharge NiMHs. They make the value of lithium primary cells look very low indeed for all of my uses. YMMV.
    No, a torch does not always mean flames.
    Ian.
    LED Driver List - now database driven and with new search features.

  12. #12
    Flashaholic
    Join Date
    Jul 2008
    Location
    Brisbane, Australia
    Posts
    106

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Would a e2 lithium cost more or cost less then alkaline batteries per mAh that we can get out of them? ie which is more economical to use?

    How come there is only AA and AAA size Energizer e2 and no C and D size?

  13. #13
    Flashaholic* LouRoy's Avatar
    Join Date
    Jan 2005
    Location
    Virginia
    Posts
    392

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    I'll chime in here also with a vote for Eneloops. There is no reason to use E2 lithium batteries on a regular basis. They cost too much and are not good for the environment as compared to rechargeable solutions.

    The only use I have for E2 lithiums is for emergency lights in vehicles, backup lights, etc. As others have so well stated, primary lithiums work well in cold and hot weather, they last a long time (so the light in the car trunk that you have ignored for five years might still work when you need it,) and they supposedly do not leak.

    I'm not even sure alkalines are worthwhile anymore since the advent of low self discharge rechargeable cells (such as Eneloops). Alkalines leak, don't handle high drain lights very well, and are also a disposal problem.

    So I recommend you get some Eneloops and a charger for most of your needs and a handful of E2 lithiums for a few select lights.

  14. #14
    Flashaholic*
    Join Date
    Mar 2005
    Location
    Houston, TX
    Posts
    662

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    What is their max realistic amp rate?

  15. #15
    Flashaholic* mighty82's Avatar
    Join Date
    Jan 2008
    Location
    Norway
    Posts
    612

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Alkalines simply doesn't work well with any high power flashligts. They give you VERY bad performance. With alkalines your flashlight will start dimming immediately because of the voltage sagging, and you will only get a short time of useful output. With e2 or NiMh you will get a constant output till the batteries are empty with most flashlights. It's as easy as that. Alkalines are just for emergencies when it comes to any high power flashlight.

  16. #16
    *Flashaholic* Marduke's Avatar
    Join Date
    Jun 2007
    Location
    Huntsville, AL
    Posts
    10,117

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    When I said e2 trumps alkalines cells hands down, I really wasn't bringing NiMH into the mix. About 90% of what I actually use is NiMH, mostly LSD. Like what was said above, they offer many of the same pros as e2, few cons (still trump alkaline in almost every way), and only cost around 2 cents per cycle IIRC.

  17. #17
    Flashaholic* NA8's Avatar
    Join Date
    Jun 2007
    Posts
    1,564

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    For people who aren't afraid of graphs, here's what it all means.

    http://lights.chevrofreak.com/runtim...20-%20high.png


    Thanks chevrofreak.
    Last edited by NA8; 07-09-2008 at 01:18 AM.

  18. #18
    Flashaholic* LouRoy's Avatar
    Join Date
    Jan 2005
    Location
    Virginia
    Posts
    392

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Quote Originally Posted by NA8 View Post
    For people who aren't afraid of graphs, here's what it all means.
    Thanks for posting that. A picture is truly worth a thousand words.

  19. #19

    Default Trouble from 1.8 volts? - even in 2AA use?

    I just picked up two of the Ray O Vac 1 watt made by Nuwai, 2aa lights. (Walmart closeout at $9 each.)

    I like the higher output of the non rechargeable Lithium Energizer batteries as it translates to a bit brighter beam. My only worry is that at about 1.8 volts, this will mean 3.6 volts total rather than the 3 volts that alkaline cells will produce.

    Is that extra voltage enough to fry the light? I would rather thrown the Lithiums in the light for car-glovebox use. They will be less likely to be dead when used some time in the future after sitting unused in the hot and cold car.


  20. #20
    Flashaholic*
    Join Date
    Jun 2007
    Location
    Texas
    Posts
    1,346

    Default Re: Trouble from 1.8 volts? - even in 2AA use?

    Quote Originally Posted by martytoo View Post
    Is that extra voltage enough to fry the light?
    Some Petzl LED lights warn AGAINST using lithium primaries. It causes these lights to over heat. It may not fail right away, but LED life will be shortened.
    EZCR2;D10;6PL;FENIX T1,P3D,P2D,L2D,L1D,L0D,LD10;PTApex;ZebraL H30;RR K2 3AA hlight;RR Nightfire 2C;Xponent 1xCR2 hlight;MyoXP;Xponent 4AA hlight;6AA & 9AA M*g Hotwire;2D MagLED Lux;4D MagLED NiteIze;3D MagLED Rebel

  21. #21

    Default Re: Trouble from 1.8 volts? - even in 2AA use?

    Quote Originally Posted by ltiu View Post
    Some Petzl LED lights warn AGAINST using lithium primaries. It causes these lights to over heat. It may not fail right away, but LED life will be shortened.

    How about this idea if you need Lithiums in the glove box for their long shelf life?

    Suck the Lithium down to 1.5 volts and then use it. I had three Lithiums in a radio and noticed that one had 1.5 volts left when two of the three had pretty much died and the radio wouldn't play on FM. I should be able to use that cell without danger.

  22. #22
    Flashaholic*
    Join Date
    Jun 2007
    Location
    Texas
    Posts
    1,346

    Default Re: Trouble from 1.8 volts? - even in 2AA use?

    Quote Originally Posted by martytoo View Post
    How about this idea if you need Lithiums in the glove box for their long shelf life?

    Suck the Lithium down to 1.5 volts and then use it. I had three Lithiums in a radio and noticed that one had 1.5 volts left when two of the three had pretty much died and the radio wouldn't play on FM. I should be able to use that cell without danger.
    My experience, e2 lithium cells cannot provide sufficient current at 1.4v and are essentially dead at 1.3v.
    EZCR2;D10;6PL;FENIX T1,P3D,P2D,L2D,L1D,L0D,LD10;PTApex;ZebraL H30;RR K2 3AA hlight;RR Nightfire 2C;Xponent 1xCR2 hlight;MyoXP;Xponent 4AA hlight;6AA & 9AA M*g Hotwire;2D MagLED Lux;4D MagLED NiteIze;3D MagLED Rebel

  23. #23
    *Flashaholic* Marduke's Avatar
    Join Date
    Jun 2007
    Location
    Huntsville, AL
    Posts
    10,117

    Default Re: Trouble from 1.8 volts? - even in 2AA use?

    Quote Originally Posted by martytoo View Post
    I just picked up two of the Ray O Vac 1 watt made by Nuwai, 2aa lights. (Walmart closeout at $9 each.)

    I like the higher output of the non rechargeable Lithium Energizer batteries as it translates to a bit brighter beam. My only worry is that at about 1.8 volts, this will mean 3.6 volts total rather than the 3 volts that alkaline cells will produce.

    Is that extra voltage enough to fry the light? I would rather thrown the Lithiums in the light for car-glovebox use. They will be less likely to be dead when used some time in the future after sitting unused in the hot and cold car.
    It's fine, you can use the L91's right out of the package in that light. Very few devices will not work properly with e2 lithiums, most of those being 3-cell direct drive lights. No need to "season" the cells to use in the Rayovac.

  24. #24
    Flashaholic* Sub_Umbra's Avatar
    Join Date
    Mar 2004
    Location
    la bonne vie en Amérique
    Posts
    4,756

    Default Re: Trouble from 1.8 volts? - even in 2AA use?

    Some lights will float if powered by lithiums. That could be a factor for some.

  25. #25
    *Flashaholic* mdocod's Avatar
    Join Date
    Nov 2005
    Location
    COLORado spRINGs
    Posts
    7,350

    Default Re: Trouble from 1.8 volts? - even in 2AA use?

    A 2AA LED light will work FINE on lithium primaries as it's very unlikely for the voltage to be high enough under a load to overcome the Vf of the LED. But since the voltage is slightly higher than alkaline cells, it probably results in the boost driver working even more efficiently as the input voltage would be even closer to the Vf that the boost driver is trying to achieve.

    Lithium primaries can be more economical than alkalines in higher drain applications where their runtime can more than overcome their increased cost, but it also depends on what cells you are comparing to. You can get a BIG package of off-brand alkalines that aren't bad and only pay about $0.25-$0.50 per cell, in which case the cost effectiveness of the lithium may not look as competitive...

    In clocks and remotes, alkalines are far more cost effective

    Eric

  26. #26

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    I always keep a spare pair of Energizer Lithiums in the car, so that will be my plan for the RayOVac as well.

    I will keep alkalines in the light and use the Lithiums if the alkalines are not working. (These "emergency" Energizer Lithiums can power my radios in a pinch, too.)

  27. #27
    Flashaholic*
    Join Date
    Oct 2007
    Location
    Texas
    Posts
    861

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    I don't like buying Lithium batteries that have expiration dates beyond a date when I could possibly still be alive.
    It's just seems like so much "wasted energy" to me.

    Seriously, a 4-pack of AA Lithium primaries cost almost exactly the same as a 4-pack of AA NimH Hybrids or Hybrios (and even Eneloops if you catch them on sale).
    On that basis, Lithiums are WAY too expensive compared to what you can ultimately get from rechargeables.

    At the same time, rechargeables fall down on the job during a power outage when you can't recharge them, so my simple strategy now is to use NimH rechargeables in my AA lights all the time, but I still keep some Lithiums in my stash as backups for those rare times when I might truly need them.

    I used to stash Alkalines, but I've recently started replacing my Alkaline stash with just Lithiums due to both the long, leak free, storage time of Lithiums, and their higher power that allows longer use during the exact times when longer use is the most important.

    My 02.

  28. #28
    Flashaholic* Black Rose's Avatar
    Join Date
    Mar 2008
    Location
    Ottawa, ON, Canada
    Posts
    4,622

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Not sure what they cost in the US, but a 4 pack of Energizer e2 lithium AA costs about $18 plus tax here, so definitely a luxury battery.

    I only need a set for the light in the car, mainly for cold weather performance, since the Eneloops can handle the summer heat.

    Prior to getting into the LSD rechargeables earlier this year, we bought a brick of alkaline AAs at Costco. Now that all of our AA devices (except wall clocks) use the rechargeables, the brick of alkaline AAs is our backup stash for lights, radios, and lanterns.

    Given the number of wall clocks we have around here (apprently I'm a clockoholic as well) the stash will be depleted by the "use by" date.

    When the emergency stash is getting close to being depleted, I will get more alkalines to replace them, since the lithium batteries just don't make economic sense for my purposes.

    Perhaps if another battery company started making lithium AA & AAA cells, the prices might come down.

  29. #29
    *Flashaholic* Marduke's Avatar
    Join Date
    Jun 2007
    Location
    Huntsville, AL
    Posts
    10,117

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Quote Originally Posted by Zenster View Post

    At the same time, rechargeables fall down on the job during a power outage when you can't recharge them,
    Because you CAN recharge lithium during a power outage? Your batteries need to be stockpiled and fresh either way. But I get your point, I keep L91's on hand because they don't require attention for 15 years and I know if they are never opened, they WILL work when I need them.

    e2's generally go for $10 for a 4-pack in the US at most B&M stores. If you shop around, you can get them much cheaper. Sam's Club for example sells 12-packs for $20. Every now and then you get a sale which puts them at about $5 for 4-pack. If you keep an eye out on eBay, sometimes you can get a bulk load of them, 100 for $100, but I would then only trust them in single cell use.

  30. #30
    Flashaholic* Randy Shackleford's Avatar
    Join Date
    Feb 2006
    Location
    New England USA
    Posts
    587

    Default Re: Energizer e2 lithium batteries vs alkaline? pros & cons

    Anyone know the voltage range for AA e2's?
    I know "fresh" AA e2 voltage is usually ~1.75+ volts.
    What is considered a "low" voltage reading ?
    Is it the same as "low" reading as alkalines (~1.3V) ?

Page 1 of 3 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •