Well they did it.... A 5000mah 18650 battery!

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Shadowww
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FX-32 wrote:

Wow 5000mAh, I'm getting mine soon Laughing

In the description it's missing the "Discharge Rate = 15A"

Nah dude, 15A is baby's task for those batteries. They can do 150A with ease.

 

actually 150A is possible to do (and so is 250A) for a 5000mAh mAh battery: http://www.hobbyking.com/hobbyking/store/__17271__Turnigy_nano_tech_5000... Silly

Don
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With our revolutionary new technology called "lying" we can make our cells do anything at all.

 

150A discharge? Not a problem!

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

Shadowww
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Don wrote:
150A discharge? Not a problem!
Technology is called "not being classic Li-Ion chemistry" in case of thing I linked to, not "lying" ;P
Don
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Shadowww wrote:

Don wrote:
150A discharge? Not a problem!
Technology is called "not being classic Li-Ion chemistry" in case of thing I linked to, not "lying" Silly

 

Sorry, I didn't see the link at the bottom of your post - my office is too brightly lit for pale grey tiny text to show up. I'm pretty sure those do - but not in an 18650 size.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

Shadowww
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Don wrote:
Sorry, I didn't see the link at the bottom of your post - my office is too brightly lit for pale grey tiny text to show up. I'm pretty sure those do - but not in an 18650 size.
But they do 5000 mAh and 250A continuous in just a bit over 18650 volume (pi*182*65 = ~660 cm3), and BOATLOADS less than 26650 volume (almost half, in fact - pi*262*65, 1400 cm3), being 810 cm3. Silly
Don
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Shadowww wrote:

Don wrote:
Sorry, I didn't see the link at the bottom of your post - my office is too brightly lit for pale grey tiny text to show up. I'm pretty sure those do - but not in an 18650 size.
But they do 5000 mAh and 250A continuous in just a bit over 18650 volume (pi*182*65 = ~660 cm3), and BOATLOADS less than 26650 volume (almost half, in fact - pi*262*65, 1400 cm3), being 810 cm3. Silly

 

Should be pi * r squared, not d squared. so is 3.14159 * (9*9) * 6.5 = 16.54cm3 or for a 26650 pi*1.3*1.3*6.5=34.51cm3

The HobbyKing pack is 9.32*4.7*1.85cm = 81.04cm- or about the same as 5 18650s.

 

Using 5 IMRs in parallel (same volume, though I suspect rather more weight and bulk) you should be easily capable of 100A - just not for very long. At best 40% of the capacity

 

Apologies for the pedantry - I used to teach this stuff. 

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

Shadowww
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Don wrote:
Should be pi * r squared, not d squared. so is 3.14159 * (9*9) * 6.5 = 16.54cm3 or for a 26650 pi*1.3*1.3*6.5=34.51cm3
Oh gee, I failed quite hard on that one. Shame on me Sad
DutchLight
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Is this even possible?!

feilox
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Those GTL brand they are claiming 2500mah on AAs or 14500s. So 5000mah doesn’t suprize me since it’s 2X the size? that store has 99.2% positive feedback and for it’s volume per month the negatives are pretty low. About 50 sad customers out of 2500 that’s pretty amazing. Funny how most of the complaints are CR123s, AA & AAAs.

Don wrote:
It sounds like the XM LEDs won’t really be suitable for flashlight use. Pity…

nofearek9
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100+ usd for 2 batteries ? Shocked

margamanos
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nofearek9 wrote:
100+ usd for 2 batteries ? Shocked

here for 27$

Buy at you own risk!

mags
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edc wrote:

500 mah I think


Nahhhh, more like 50 mah
mags
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Davx wrote:

I just create the new BLF battery… Please hurry up.. only one piece left! Laughing

Battery


LMAO!!! Now slap it on eBay and sell it for $50 with $250 in shipping.
Shadowww
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RecycledElectrons wrote:
New Panasonic and Sanyo cells generally test at their rated capacity. New cells from other manufacturers are generally overrated.
Uh, you forgot Samsung, LG, and Sony. Their cells test at rated capacity as well, and are just as great in terms of quality and safety.
Rusty Joe
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We can make our own 18650s. Let’s label them 50,000 mAh and really rake in the dough…uh, I mean Paypal disputes! lol

Rusty Joe
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margamanos wrote:
nofearek9 wrote:
100+ usd for 2 batteries ? Shocked

here for 27$

Buy at you own risk!

Wow. That seller has the lowest feedback I think I’ve seen.

margamanos
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Rusty Joe wrote:
margamanos wrote:
nofearek9 wrote:
100+ usd for 2 batteries ? Shocked

here for 27$

Buy at you own risk!

Wow. That seller has the lowest feedback I think I’ve seen.

I think this guy qualifies too! :bigsmile:

Skippic
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Has anyone measured them?

okwchin
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1 Lumen equals 1.7604 Fake Chinese Lumens ( FCL) .

This has the correct sense, in that you need MORE FCLs to equal 1 real lumen, becasue the FCL is a small unit.

"like everyone else - I’m looking for my next “last” flashlight" -  ohnonothimagain

Skippic
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1 Fake Chinese Lumen = 0.568 Lumen

PhatPhil
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scaru
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You mean here?

http://www.lygte-info.dk/info/indexBatteriesAndChargers%20UK.html

That page is run by a member of this forum, HKJ. 

hank
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>> Google is a great search engine but unfortunately it doesn’t filter out idiocy.

In either direction — because it’s a series of tubes.

>> being googled here

> means …

Well, nouns get verbed — it just happens eventually.

So for this visitor when he said he was “googled here” he’s using it to mean somethin like “directed” or “taken” or “piped” or transported” or “delivered” — why not? Noun becomes verb.

Delivered is after all what google does with your attention.

And it drops you directly into a linked page without showing you any FAQ, or welcome mat, or front page, or any clue where you’re going. Then you click around and see more ads.

Perfect, innit?

Nobody was explaining what everyone here would already know: no rechargeable battery of that type and size now for sale will possibly hold as much energy as was advertised. “Extraordinary claims require extraordinary evidence” and you won’t get that from people trying to sell you crap.

You know Sturgeon’s Law. It applies.

Skippic
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I measured them and the capacity is about 2200mAh.

DayLighter
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Skippic wrote:
I measured them and the capacity is about 2200mAh.

sorry i’m a noob.. but how do you measure the mAh? do you have a tool to measure them?
i actually bought these batteries 20 of them to be precise.. out of 20 only 1 is bad
i tested most them are all are 8.4V maybe 2 of them is 8.2V or 8.3V after fully charged

are these good?

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

HKJ
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DayLighter wrote:
sorry i'm a noob.. but how do you measure the mAh? do you have a tool to measure them?

You use a hobby charger, the cheapest ones starts at about $25.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

texaspyro
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No, internationally accepted standard for converting SinoBogoLumens to Real American Lumens is around 3 to 1.

Major
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Sorry but wanting to know the real capacity of a GTL 18650 is like wanting to measure the horse power of a P50 micro car. You know its gonna be low before you even start, so you buy it, measure it, even risk your life with it, you get the results and yes they are as bad as you thought they might be. Poorer, older, not really any wiser, what a pointless exercise that was.

Aalsen
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What 18650 battery with the most actual mAh can we get today? Is it “just” 3400mAh, like the Panasonic ncr B which i’ve read somebody has measured to have actual mAh as stated on it..

scaru
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Aalsen wrote:
What 18650 battery with the most actual mAh can we get today? Is it "just" 3400mAh, like the Panaconic ncr B, which i've read somebody has measured to have actual..

Yep, the NCR18650B is the highest capacity battery. 

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