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#283782 - 02/16/17 06:08 PM Re: What did you do today to prepare? [Re: bacpacjac]
TeacherRO Offline
Carpal Tunnel

Registered: 03/11/05
Posts: 2574
Learning more about rechargeables; what works for what, when to re-charge...etc

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#283784 - 02/16/17 07:36 PM Re: What did you do today to prepare? [Re: TeacherRO]
chaosmagnet Offline
Sheriff
Carpal Tunnel

Registered: 12/03/09
Posts: 3819
Loc: USA
Originally Posted By: TeacherRO
Learning more about rechargeables; what works for what, when to re-charge...etc


Here are the battery chemistries I pay the most attention to:

NiCd sucks.

LiCoO2 AKA ICR (you probably know them as Lithium Ion batteries) are used in most cellphones, laptops, and so on. Great capacity and cycle life, with low self-discharge rates. Prone to "vent with flame" when damaged or discharged too quickly. Don't use these unless they have built-in protective circuitry. I use these in most non-AA/AAA devices.

LiMn2O4 AKA IMR are used in vapes and other high-discharge uses like high-performance flashlights. Significantly safer than ICR chemistry but has less capacity and cycle life. Most think they don't need protective circuitry. Great in high-discharge devices. I use these in one specific device.

LiNiMnCoO2 AKA INR supposedly combine the best features of ICR and IMR. I don't have any of these.

NiMH is the chemistry used by Eneloops. I use these extensively in place of primary (non-rechargeable) batteries in AA and AAA devices.

None of these (other than NiCd) have a "memory" effect and handle top-up charges well.

Long-term storage of rechargeables is best, supposedly, at around 40% of charge to prevent degradation over time. I keep most of my rechargeables in "ready to use" mode, fully charged or nearly so.


Edited by chaosmagnet (02/16/17 07:43 PM)
Edit Reason: clarification

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#283785 - 02/17/17 01:16 AM Re: What did you do today to prepare? [Re: bacpacjac]
Bingley Offline
Veteran

Registered: 02/27/08
Posts: 1576
Eneloops is such a superior technology to conventional batteries that I'm amazed it's not more commonly known. You start saving money in the not-so-long run. It holds a charge well. You create less garbage. It shouldn't be a niche product.

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#283787 - 02/17/17 04:07 AM Re: What did you do today to prepare? [Re: Bingley]
hikermor Offline
Geezer in Chief
Geezer

Registered: 08/26/06
Posts: 7705
Loc: southern Cal
I suspect their market share is growing - it certainly should be. I am a very satisfied Eneloops user,and I am starting to use lithium ions, as well.
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Geezer in Chief

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#283788 - 02/17/17 04:56 PM Re: What did you do today to prepare? [Re: bacpacjac]
chaosmagnet Offline
Sheriff
Carpal Tunnel

Registered: 12/03/09
Posts: 3819
Loc: USA
Make REALLY REALLY sure that your charger is designed to work with not just your battery's size, but its chemistry. Also, whatever charger you use should probably be a "smart" charger that analyzes the battery to charge it the safest way, and cuts off the charge when it's full.

The chargers I've seen that come in some Eneloop packages is safe to use but not "smart", so I don't use them.

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#283793 - 02/17/17 07:08 PM Re: What did you do today to prepare? [Re: bacpacjac]
wildman800 Offline
Carpal Tunnel

Registered: 11/09/06
Posts: 2846
Loc: La-USA
I am not listing items but, I am putting significant resources to updating equipment and increasing my long term food storage amounts.

I am finally making a little progress towards building a community and have established a long range rendezvous pt.

I am looking for a location to establish a bushcraft base to practice and share bushcrafting skills.
_________________________
QMC, USCG (Ret)
The best luck is what you make yourself!

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#283858 - 02/25/17 02:30 AM Re: What did you do today to prepare? [Re: chaosmagnet]
Bingley Offline
Veteran

Registered: 02/27/08
Posts: 1576
Originally Posted By: chaosmagnet
The chargers I've seen that come in some Eneloop packages is safe to use but not "smart", so I don't use them.


What do you recommend that we use instead for our Eneloops, chaosmagnet?? I have a number of chargers that came with my various types of rechargeable batteries, and I always just made sure to use the manufacturer's charger for any set of batteries. It sounds like there may be a better solution.

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#283859 - 02/25/17 04:13 AM Re: What did you do today to prepare? [Re: Bingley]
hikermor Offline
Geezer in Chief
Geezer

Registered: 08/26/06
Posts: 7705
Loc: southern Cal
Here's one I would nominate - a Nitecore Intellicharger i4. It will accept a variety of battery chemistries - nimh, Li-ion (what I am currently using) in AA.,AAA, C, and 18650 configurations. It stops charging automatically and I have had no problems, but I have been using only protected li-ions. There are other units that will do even more, but this model is working well for me. The cost was somewhere around $40, as I remember.

I am sure Chaos can add more to this.....
_________________________
Geezer in Chief

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#283860 - 02/25/17 04:41 AM Re: What did you do today to prepare? [Re: hikermor]
Russ Offline
Geezer

Registered: 06/02/06
Posts: 5357
Loc: SOCAL
For other than D cell NiMH, I use a Nitecore D2 Digicharger.

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#283861 - 02/25/17 11:44 AM Re: What did you do today to prepare? [Re: bacpacjac]
LesSnyder Offline
Pooh-Bah

Registered: 07/11/10
Posts: 1680
Loc: New Port Richey, Fla
Wildman800...you may already be familiar with the LDS storage method, but if not this video of Wendy DeWitt changed the way I stored some long term staples... the PDF file has some pretty good information also

https://www.youtube.com/watch?v=gOLuIApyNPc

https://drive.google.com/file/d/0B06YYNupBx59QnpYd3BTdndpTzQ/view

instead of vacuum sealing in bags, I use quart canning jars with the lid sealing attachment... store the filled jars in the original boxes under my bed


Edited by LesSnyder (02/25/17 11:53 AM)

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