Equipped To Survive Equipped To Survive® Presents
The Survival Forum
Where do you want to go on ETS?

Page 1 of 2 1 2 >
Topic Options
#294193 - 11/16/19 09:26 PM 20 x Energizer Ultimate L91 AA @ Costco $13.99
Ren Offline
Member

Registered: 11/05/07
Posts: 166
Just heads up, saw a post elsewhere and thought some might appreciate here.

https://www.reddit.com/r/flashlight/comm..._l91_14_for_20/

Expiry date is 2036.

Top
#294194 - 11/16/19 11:49 PM Re: 20 x Energizer Ultimate L91 AA @ Costco $13.99 [Re: Ren]
chaosmagnet Online   content
Sheriff
Carpal Tunnel

Registered: 12/03/09
Posts: 3228
Loc: USA
Nice! Thank you!

Top
#294195 - 11/17/19 12:33 AM Re: 20 x Energizer Ultimate L91 AA @ Costco $13.99 [Re: Ren]
Phaedrus Offline
Pooh-Bah

Registered: 04/28/10
Posts: 2437
Loc: Big Sky Country
Wow! I'll have to check my local Costco! That's an epic bargain!
_________________________
“You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.” Naguib Mahfouz

Top
#294197 - 11/17/19 05:59 AM Re: 20 x Energizer Ultimate L91 AA @ Costco $13.99 [Re: Ren]
haertig Offline
Pooh-Bah

Registered: 03/13/05
Posts: 2103
Loc: Colorado
What is the typical use case for primary lithiums? I use rechargeable NiMH for high current drain devices and frequently used devices. I keep alkalines for backup (not left half-used in a device, since they leak). I use rechargeable lithiums for high draw devices that can take the higher voltage (usually means a higher end flashlight).

I can see a use case for primary lithiums for devices that sit around and are used seldom (years of sitting around), devices that may sit around with half-drained batteries where you don't want leakage, devices that have high current drains - I'm thinking maybe a home defense shotgun mounted flashlight fits for these three example criteria.

What are other good use cases for primary lithiums?

I want to buy some at this good price, but I'm struggling a little in deciding where I might use them.

Top
#294198 - 11/17/19 06:42 AM Re: 20 x Energizer Ultimate L91 AA @ Costco $13.99 [Re: Ren]
Phaedrus Offline
Pooh-Bah

Registered: 04/28/10
Posts: 2437
Loc: Big Sky Country
I use them in flashlights where high performance in cold temps or storage in cold temps is important. Anything left in my car has a good chance of being exposed to freezing times 7 months of the year (Montana). I have had alkaleaks ruin cameras, lights, etc so I don't use them in any application.

I am not a big user of rechargeables but I suppose that's habit and maybe ignorance on my part. About all I use 'em for is my computer mouse.

TL;DR version- about all I use is lithiums. For virtually all applications.
_________________________
“You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.” Naguib Mahfouz

Top
#294199 - 11/17/19 01:12 PM Re: 20 x Energizer Ultimate L91 AA @ Costco $13.99 [Re: Phaedrus]
adam2 Offline
Addict

Registered: 05/23/08
Posts: 441
Loc: Somerset UK
Energiser ultimate lithium cells are good in low temperatures as has already been said.

Also, IMHO, good for long term storage in case of any future emergency. The latest versions have a 20 year shelf life from production, typically 19 years from retail sale.

Alkaline cells are fine for everyday use in low price appliances.
Rechargeable cells have their merits, but remember that the means of charging may not be available in an emergency.
L91 lithium cells can be simply stored away and ignored and work reliably 20 years later. And might well work after 40 years, but don't count on that.

Some people bury or otherwise conceal a stash of emergency supplies for use after any major disaster. Contents might include firearms, freeze dried food, matches, water filters, and these days flashlights with L91 batteries.

Many years ago, there where available ultra long shelf life zinc carbon cells. These were truly dry in storage and therefore almost immune to spoiling. The required electrolyte was stored in a separate vial within the cell, to use the cell, this vial was fractured and after 30 minutes the cell was ready for use. No longer manufactured AFAIK, perhaps due to long shelf alternatives.

Top
#294202 - 11/17/19 03:46 PM Re: 20 x Energizer Ultimate L91 AA @ Costco $13.99 [Re: adam2]
hikermor Online   content
Geezer in Chief
Geezer

Registered: 08/26/06
Posts: 7067
Loc: southern Cal
Originally Posted By: adam2


Alkaline cells are fine for everyday use in low price appliances.
Rechargeable cells have their merits, but remember that the means of charging may not be available in an emergency.
L91 lithium cells can be simply stored away and ignored and work reliably 20 years later. And might well work after 40 years, but don't count on that.


Alkaline cells are obsolete,IMO. I have been replacing them with rechargeables (NiMH and Lith-ion) over the last few years with completely satisfactory results.

How to recharge? In the unlikely event of widespread, prolonged power outages, especially in highly developed California, there are feasible alternatives - at least for most battery powered devices (phones, lights, GPS, etc).

Aside from dedicated generators, you have motor vehicles, easily equipped to charge batteries. Going beyond that, get solar panels. I have kept all my stuff running for up to a week in isolated field situations with a moderate size panel which I could back pack, if necessary. Power banks are another option, very sensible, depending on situations.

primary lithium batteries are defintely useful, but shun alkalines!
_________________________
Geezer in Chief

Top
#294203 - 11/17/19 05:09 PM Re: 20 x Energizer Ultimate L91 AA @ Costco $13.99 [Re: Ren]
Ren Offline
Member

Registered: 11/05/07
Posts: 166
Talking of power banks, there are ones that typically take 4 AAs and provide USB output, to charge phones and the like.

Eg (just first found on amazon.com)

https://www.amazon.com/POW1-EMERGENCY-PORTABLE-BATTERIES-SMARTPHONES/dp/B0168O5GOG

Also a handy battery holder.


Edited by Ren (11/17/19 05:10 PM)

Top
#294208 - 11/18/19 01:08 AM Re: 20 x Energizer Ultimate L91 AA @ Costco $13.99 [Re: Ren]
Phaedrus Offline
Pooh-Bah

Registered: 04/28/10
Posts: 2437
Loc: Big Sky Country
Well, just got back from Costco...wouldn't you know it, they don't carry them at all. frown
_________________________
“You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.” Naguib Mahfouz

Top
#294237 - 11/20/19 08:52 PM Re: 20 x Energizer Ultimate L91 AA @ Costco $13.99 [Re: Ren]
teacher Offline
Old Hand

Registered: 12/14/05
Posts: 825
I see Woot has battery deals again

Top
Page 1 of 2 1 2 >



Moderator:  Alan_Romania, Blast, chaosmagnet, cliff 
December
Su M Tu W Th F Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
Who's Online
3 registered (hikermor, Tjin, Herman30), 290 Guests and 20 Spiders online.
Key: Admin, Global Mod, Mod
Newest Members
Acropolis50, SimonBlack88, KnifePark, Sank, AppalachianGirl
5299 Registered Users
Newest Posts
Survial Caches
by chaosmagnet
33 minutes 54 seconds ago
Happy anniversary to me!
by Eugene
43 minutes 12 seconds ago
Going off pavement
by Eugene
55 minutes 29 seconds ago
Nifty small headlamp
by Eugene
Today at 02:59 AM
Article: Community, Preparedness, Resiliency
by dougwalkabout
Today at 01:37 AM
Homing Pigeons as survival equipment
by dougwalkabout
Today at 01:28 AM
Perfection Loop with tutorial link
by TonyE
Yesterday at 10:51 PM
Carrick Loop/ Bowline alternative - Tutorial
by TonyE
12/08/19 05:04 AM
Newest Images
Tiny knife / wrench
Handmade knives
2"x2" Glass Signal Mirror, Retroreflective Mesh
Trade School Tool Kit
My Pocket Kit
Glossary
Test

WARNING & DISCLAIMER: SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please review the full WARNING & DISCLAIMER about information on this site.