[Sold out] 8 Purple Samsung ICR18650-28A $10 shipped

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CRANK
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I guess I will create another post for these new packs I discovered

Siskiyou
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CRANK wrote:
The same seller has THESE original asus battery packs for sale. Maybe someone could figure out the capacity of these cells for us. Under description 8-cell 63Wh 4400 mAh. Might be worth taking a chance on these for $9 dollars shipped

Seller did not give voltage, but usually 8 cell packs have 2 parallel banks so 2200mAh cells. Maybe less for most of us with our chargers if they are 4.3v cells…

A rule of thumb is to divide the packs rating by 2 if it is 6 or 8 cells, by 3 if 9 cells.

M4D M4X
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Thanks!

what about a Post where you sum up some Infos about pulling cells from Laptop batteries?
the Math – good manufacturers – how to open them …
maybe a list which cells has been found in which battery
and so on…

Wink

PLEASE NOTE
i do not work in "reviews, deals and codes" for the time being
maybe M4D M4X will return one day, but until then:

THANK YOU FOR YEARS OF YOUR SUPPORT AND FRIENDLY CONTACTS!

Speedsix
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I got my first pack and already cleaned them up. Dremil the ends and they are all charged. I can only charge them to 4.2v but that’s fine. All the cells seem just fine. Much better deal than the Ultrafire junk that doesn’t last 40mins in my headlamp. These are good solid cells that are worth at least $4-5 each.

I have another pack coming any day. I didn’t need more cells but I’m glad I got them because they are not used like all my other cells. Sometimes I will put in cell in my headlamp and it will cut out before it should. I keep meaning to mark the cells that under preform but I never do. At least I know all my light purple cells are good.

DayLighter
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ugh.. my fingers cramped from pulling these batteries with brute force
 photo P1030037_zps0d0122f4.jpg

my wife think I have a problem.. sheesh what make her like think that? J)

look at the bright side.. if I can’t sleep, instead counting sheeps.. I’ll count my batteries :bigsmile:
 photo P1030040_zps7a79a903.jpg

now if only we can find deals on 26650 batteries.. Flat Stare

The only way to do a great work is to love what you do.

unknown00101
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Daylighter I think you might possibly have a problem.

Silly

What are your plans for the new stash of cells?

DayLighter
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Don’t know yet.. actually I still 10 pairs of new ones NCR B and NCR PF from banggood and wallbuys that I still haven’t use yet.
I usually gave my lights away after I’m tired playing with it.. I guess this is the kind of batteries that you want to include them with the lights Smile
I’m planning to build myself a super pack for my bicycle lights for in case of emergency so I could use it for longer run time.
Such as opening Disaster Relief Center where usually there’s no electricity after Disaster struck.
Last year during hurricane Sandy they have to rely heavily on my flashlights to keep the center open at night until Government step in 2 weeks later with the emergency generator :Sp

The only way to do a great work is to love what you do.

GregY
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I got my single solitary pack today. Pulled the cells and 4 of them showed 3.71v and the other 4 showed 3.70v. Lovely. Now I wonder if I should have gotten more. Smile

kronological
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Received yesterday. All at 3.7. Great deal!

No one, after lighting a lamp, puts it away in a cellar nor under a basket, but on the lampstand, so that those who enter may see the light.

My Reviews: Ma

ryansoh3
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unknown00101 wrote:
Daylighter I think you might possibly have a problem.

Silly

What are your plans for the new stash of cells?

Correction: Daylighter I think you most certainly do have a problem. Big Smile

BLF ≠ B-grade Flashlight Forum

 

dchomak
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The only problem I see here is he doesn’t have enough flashlights Smile

dchomak
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DayLighter, because these cells are already sitting at the perfect storage voltage of 3.7, I would not charge them up until you actually need them. Cells charged up to 4.2V can loose upwards of 20% capacity (not charge) in 1 year at room temperature, but only about 4% at 3.7.

Other deals that we have come across, where the pulled cells are sitting a little low, I would charge up as soon as possible. For storage purposes, what I don’t know is would it be best to charge them up to 4.2 first and then discharge to 3.7 or only go straight to 3.7. Does anybody know?

atbglenn
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Lets face it, we all have problems. Some worse than others. Daylighter on the other hand is in a different league all together. lol! 

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ryansoh3
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dchomak wrote:
DayLighter, because these cells are already sitting at the perfect storage voltage of 3.7, I would not charge them up until you actually need them. Cells charged up to 4.2V can loose upwards of 20% capacity (not charge) in 1 year at room temperature, but only about 4% at 3.7.

Other deals that we have come across, where the pulled cells are sitting a little low, I would charge up as soon as possible. For storage purposes, what I don’t know is would it be best to charge them up to 4.2 first and then discharge to 3.7 or only go straight to 3.7. Does anybody know?

I don’t think it would matter too much because it’s only one (or even less) battery cycle.

I would charge it up to 4.20V and see how well it holds the voltage. A lot of my bad cells would drop right back to 4.10V because of their high internal resistance.

In real usage, I don’t think I would notice even a 20% reduction in capacity because I don’t use my lights continuously.

BLF ≠ B-grade Flashlight Forum

 

Tom E
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atbglenn wrote:

Gj wrote:

atbglenn wrote:

Tom E wrote:

1 left...

Tom, this my first battery pack. My question is are the batteries connected together with welded tabs? If so, are they easily removed without damage. Do you dremel them off, or just leave them on cutting away as much as possible?

Just trim them if you want more height, a la mini-button, or grab the tab with needle-nose pliers and roll it off like opening a can of sardines with a key. (Do they still make those?) Then gently file down any sharp bits.

Thanks man, much appreciated Smile  

Ooops, missed this. These are not the easiest packs to open, not a good one to start with. I've done several other packs and this one was a challenge. Cells are packed tight in, glued very well, etc... Plastic though is thin and plyable -- you must be careful though, go slow, don't lose your patience. I used small tools - small cutter and a needlenose on this one. A small wire cutter is good enough to make cuts in the plastic, then the needlenose to pull/peel back - never pry because prying may be leveraging against a cell, which will damage it. You can start at a end or at the ridge where the electronics is - I did both ways. I try to get to wires to the driver first and cut them to avoid sparks.

Tabs are tack welded, pull them off carefully, gently, get as much off as you can with needlenose. What remains I dremel off with a dremel sanding drum. + end is heavier duty metal, but "-" end you have to be very careful with.

I only messed up one cell - grounded, got some sparks at the "+" end, but cell was fine. Simply pulled off the wrapper and re-wrapped with 18650 shrink wrap but to patch the small hole in the wrapper on the edge at the + end.

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GregY wrote:
I got my single solitary pack today. Pulled the cells and 4 of them showed 3.71v and the other 4 showed 3.70v. Lovely. Now I wonder if I should have gotten more. :)

 

+1, my  thoughts exactly..hindsight...sighhhhhh

atbglenn
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Tom E wrote:

atbglenn wrote:

Gj wrote:

atbglenn wrote:

Tom E wrote:

1 left...

Tom, this my first battery pack. My question is are the batteries connected together with welded tabs? If so, are they easily removed without damage. Do you dremel them off, or just leave them on cutting away as much as possible?

Just trim them if you want more height, a la mini-button, or grab the tab with needle-nose pliers and roll it off like opening a can of sardines with a key. (Do they still make those?) Then gently file down any sharp bits.

Thanks man, much appreciated Smile  

Ooops, missed this. These are not the easiest packs to open, not a good one to start with. I've done several other packs and this one was a challenge. Cells are packed tight in, glued very well, etc... Plastic though is thin and plyable -- you must be careful though, go slow, don't lose your patience. I used small tools - small cutter and a needlenose on this one. A small wire cutter is good enough to make cuts in the plastic, then the needlenose to pull/peel back - never pry because prying may be leveraging against a cell, which will damage it. You can start at a end or at the ridge where the electronics is - I did both ways. I try to get to wires to the driver first and cut them to avoid sparks.

Tabs are tack welded, pull them off carefully, gently, get as much off as you can with needlenose. What remains I dremel off with a dremel sanding drum. + end is heavier duty metal, but "-" end you have to be very careful with.

I only messed up one cell - grounded, got some sparks at the "+" end, but cell was fine. Simply pulled off the wrapper and re-wrapped with 18650 shrink wrap but to patch the small hole in the wrapper on the edge at the + end.

Tom, it's done. I used a screwdriver at the connector and spread the case apart a little bit. From there I used small lineman's pliers, carefully peeling away the casing. After I removed the batteries, I rolled off the welded tabs with a pair of needle nose pliers. I used a Dremel to smooth out the burrs on the + and - connections., then cleaned the batteries. I didn't damage any of them. I've got 4 of them charging now.

 

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BLightSam
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atbglenn wrote:
I’ve got 4 of them charging now.
What’s that charger?
atbglenn
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BLightSam wrote:
atbglenn wrote:
I've got 4 of them charging now.
What's that charger?

They are Xtar VP1 chargers. I love them so much, I hardly use my hobby chargers anymore, except for checking my cells.

BTW, the displays work and look great, accurate too. The camera flash makes them look really dim

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Tom E
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Nice work Glenn! Better than me...

atbglenn
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Tom E wrote:

Nice work Glenn! Better than me...

Thanks Tom, but nobody's better that you pal Smile

This is what the case looks like. lol! 

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DayLighter
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dchomak wrote:
The only problem I see here is he doesn’t have enough flashlights Smile

Actually I’m running out of room on my shelf.. especially with another 12 coming from Aliexpress spring festival sale Tired
look like I have to do some spring cleaning sale too Silly
 photo flashlightcollection_zps6150545b.jpg

The only way to do a great work is to love what you do.

atbglenn
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DayLighter wrote:
dchomak wrote:
The only problem I see here is he doesn't have enough flashlights :)
Actually I'm running out of room on my shelf.. especially with another 12 coming from Aliexpress spring festival sale Tired look like I have to do some spring cleaning sale too Silly  photo flashlightcollection_zps6150545b.jpg

Holy shit! 

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Tom E
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So sic Kenny and that's with some missing (by me)! This is why I scatter mine around... Smile

DayLighter
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Good idea Tom.. the problem is when I scatter it around the room, I won’t know if it’s missing or not Wink

The only way to do a great work is to love what you do.

atbglenn
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Kenny, we should get together along with Tom (if he's willing) sometime. We'll have a barbeque at my house. What do you think? 

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DayLighter wrote:
dchomak wrote:
The only problem I see here is he doesn’t have enough flashlights Smile
Actually I’m running out of room on my shelf.. especially with another 12 coming from Aliexpress spring festival sale Tired look like I have to do some spring cleaning sale too Silly  photo flashlightcollection_zps6150545b.jpg

HOLY CRAP

Would you mind keeping the wrong flashlight?
Best wish, May
Tmart service team

 

Soumil wrote:

PLEASE HELP ME GEARBEsT! IM LITERALLY CRYING!

 

DayLighter
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sure Glenn.. BBQ at night? so we have excuse to use our flashlights lol..j/k yeah sure let me know when is good for you and I’ll check the schedule with the wifey Smile

The only way to do a great work is to love what you do.

Tom E
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atbglenn wrote:

Kenny, we should get together along with Tom (if he's willing) sometime. We'll have a barbeque at my house. What do you think? 

Willing Smile? Only at night though - we'll provide the lights! Ohh - I'll definitely bring the beers. Have you been to the Forest Pork store in your neighborhood? Wow - my favorite BBQ meats, but I'm into the German sausages, but they got lots of other goodies to grill. Even their hot dogs are the best around...

atbglenn
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Kenny, that would make sense. Barbeques are always so much better at night anyway. My neighbors think I'm crazy spending so much money on this hobby. Having you here will convince them that I'm normal....lol!! just kidding. Your collection completely blew my mind! Seriously did! Anyway, it would be great to meet you in person, hopefully Tom too. Let's plan for sometime this summer, after I stain my backyard deck, and my lawn looking good. I like things looking perfect before I meet new people..

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