Deeming Regulations have been released!!!!

susieqz

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While I don't do all that cause I have no convenient way to, another tip is to charge when it gets down to somewhere's around 3.5V or a bit above, IIRC. Lithium batteries like more frequent shallow charges. For those interested, this is where I would have read that info: https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries . (I might stand to use a refresher on that page myself later, but more because I'm an extreme tight-..... :))

I really wish one could set chargers for lower top-voltage cutoffs, though. I have one (Litokala 500) that seems to stop at 4.22, which is a bit high for my comfort. But that charger is a really nice one because it does all 3 major chemistries.


Interestingly (or not), being able to fix my own mods was a MAJOR contributor to my deciding to take on electronics engineering as an additional new hobby. :thumb:


the skyrc mc3000 lets you set cut off volts where ever you want.
 

DaveP

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Capacity testing would be interesting on those.

I'm not sure how the text you quoted is relevant to us. We don't use ni-cad batteries, nor do we use "primary" (which means non-rechargeable) lithium batteries.

I did miss the Primary label earlier on in the article, but the table farther down addressed Lithium Ion specifically.

The article covered all types and was a mixed bag of info, but it did specifically address lithium-ion in the storage guidelines table further down in the article.

BU-702: How to Store Batteries – Battery University

Simple Guidelines for Storing Batteries
  • Primary batteries store well. Alkaline and primary lithium batteries can be stored for 10 years with moderate loss capacity.
  • When storing, remove the battery from the equipment and place in a dry and cool place.
  • Avoid freezing. Batteries freeze more easily if kept in discharged state.
  • Charge lead acid before storing and monitor the voltage or specific gravity frequently; apply a charge if below 2.07V/cell or if SG is below 1.225 (most starter batteries).
  • Nickel-based batteries can be stored for 3–5years, even at zero voltage; prime before use.
  • Lithium-ion must be stored in a charged state, ideally at 40 percent. This prevents the battery from dropping below 2.50V/cell, triggering sleep mode.
  • Discard Li-ion if kept below 2.00/V/cell for more than a week. Also discard if the voltage does not recover normally after
 
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stols001

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Ooh I like the 10 years thing. I think you can store batteries in the freezer well, too. I might get a bunch, and as I take them out, slowly replace them so I always have a 10 year supply. LOL the husband is gonna like THIS I am sure. But there's really NO reason NOT to do it honestly.

I can just date the boxes. I AWAIT the next fabulous battery sale. I think I will be going back to my beloved green Samsungs. I've got batteries still holding a very nice charge since the day I showed up at ECF.

Anna
 

MikeE3

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Capacity testing would be interesting on those.

I recently pulled out some AW 18350's and 18490's I bought in the spring and fall of 2015 to use. They've been in storage for a couple-few years unused. They were most likely at full charge when put into vape storage.

While they charge up to full charge on either my Nitecore or Pilia charger ... they sure don't seem to have anywhere near the capacity they once had. An 18350 can go from full charge to zero in an hour's use and I can't even get an entire evening vaping on an 18490. (using them in Provari 2.5s, P3s and Classics).

I'd be leary of long term storage, even if put away at 3.7 volts not full charge. I've got no facts or evidence to support this, just my gut feeling.
 

Baditude

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Fidola13

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Ooh I like the 10 years thing. I think you can store batteries in the freezer well, too. I might get a bunch, and as I take them out, slowly replace them so I always have a 10 year supply. LOL the husband is gonna like THIS I am sure. But there's really NO reason NOT to do it honestly.

I can just date the boxes. I AWAIT the next fabulous battery sale. I think I will be going back to my beloved green Samsungs. I've got batteries still holding a very nice charge since the day I showed up at ECF.

Anna

That’s why I’ve been stocking up on batteries when ever there’s a good sale especially on the 25Rs and the LGs brown ones (can’t remember which off the top of my head) but I’ve been able to get the 25Rs at $2.99 and the LGs almost as inexpensive. And like you I plan on continuing to purchase them when on sale.

I’ve already stocked up on 26650s since previously approved ones are getting more difficult to find.
 

Eskie

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That’s why I’ve been stocking up on batteries when ever there’s a good sale especially on the 25Rs and the LGs brown ones (can’t remember which off the top of my head) but I’ve been able to get the 25Rs at $2.99 and the LGs almost as inexpensive. And like you I plan on continuing to purchase them when on sale.

I’ve already stocked up on 26650s since previously approved ones are getting more difficult to find.

With the restrictions related to shipping of Li batteries, it's become more expensive. I remember when I started ordering 4 batteries with shipping wasn't a big deal. Now I'll try to bulk buy looking for sales to keep the shipping costs a reasonable ratio to the goat of the batteries. It's not like 8 batteries cost any more for S&H than 4.
 

Fidola13

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With the restrictions related to shipping of Li batteries, it's become more expensive. I remember when I started ordering 4 batteries with shipping wasn't a big deal. Now I'll try to bulk buy looking for sales to keep the shipping costs a reasonable ratio to the goat of the batteries. It's not like 8 batteries cost any more for S&H than 4.

Exactly. I order 10 of the LGs a couple of months ago. Not only is the shipping the same but several sites lower the cost a tiny bit the more products ordered. Previously to that I did the same when the 25Rs were $2.99 during a sale. They’re actually still very inexpensive compared to how much they use to be and compared to some of the newer ones. But they ft my vaping style perfectly so I keep buying them.

Was the consensus not to fully charge them prior to storage or charge to about 30-40% which most come charged to anyways?

Just want to make sure I’m doing this the best way possible for the knowledge we have at the moment.

Thanks
 

Eskie

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Storage voltage on these seems to be around 3.5V for long term stashing. Same as when they come from the distributor. I'm sure there's some specific electrical scientific reason for that voltage, but I just go with "I know it's about right" and not work out the math myself. If that's what works going from Sony, Samsung, LG to the reliable source here I figure that's enough of an explanation for me.
 

Baditude

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I always miss sales. :(. They don't appear to be having one now. Maybe soon.
@Horselady154 Will probably have one for Labor Day.

I buy batteries when I need them. My LG HG2 (3 years old) and Samsung 30Q (2 years old) needed to be replaced, so I bought four Sony VTC6 batteries from IMR Bats last week to give them a try.
 
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Baditude

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RTD Vapor was always my "go to" for batteries for years, especially when purchasing authentic AW batteries for my Provari's. Since AW went out of business, I've shopped around using IMR Batteries as well as RTD Vapor. Price, shipping cost, and availability usually dictates which one I use.
 

Rossum

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the skyrc mc3000 lets you set cut off volts where ever you want.
Yeah, but most folks here are too, uhm, frugal to spend that kind of money on a charger, and besides the dang thing is complicated; it works best connected to a PC. I'm not sure I want to be bothered with that, and I recently bought West Mountain Radio CBA. ;)
 

HigherStateD

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Ooh I like the 10 years thing. I think you can store batteries in the freezer well, too. I might get a bunch, and as I take them out, slowly replace them so I always have a 10 year supply. LOL the husband is gonna like THIS I am sure. But there's really NO reason NOT to do it honestly.

I can just date the boxes. I AWAIT the next fabulous battery sale. I think I will be going back to my beloved green Samsungs. I've got batteries still holding a very nice charge since the day I showed up at ECF.

Anna
Mooch addressed the freezer/cold storage for batteries. As I remember, it's unadvisable, as condensation is problematic, and there are only minimal, if any gains.
 

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