Samsung ICR18650-28A (18650 2800MAH)

[taschenlampe]

Re: new 18650 battery?

sku? Can't find em.

Search with SKU doesn't work.
Got to their hompage => "What is new?" => then "Click here for more…"


tl

 

[jasonck08]

Re: new 18650 battery?

LOL... UltraFire is claiming 3000maH. I believe the highest capacity from a top company is either 2700 or 2900maH for 18650 cells. I bet the UltraFIre is 2500 or less mah.

 

[sol-leks]

Re: new 18650 battery?

still interesting. I mean there must be a reason they want to differentiate these from their other batteries.

 

[phantom23]

Re: new 18650 battery?

LOL... UltraFire is claiming 3000maH. I believe the highest capacity from a top company is either 2700 or 2900maH for 18650 cells. I bet the UltraFIre is 2500 or less mah.

Interesting because yes, they claim overrated values but not that much. Ultrafire 2400mAh 18650 has real capacity ~2,1-2,2Ah so these may be over 2,5Ah which is great for $9 shipped.
Samsung and Panasonic have 2800-2900mAh cells, tested close to 3Ah so it is possible.

I think this thread should be here:
http://www.candlepowerforums.com/vb/showthread.php?p=2838928#post2838928

 

[DM51]

Re: new 18650 battery?

I was on the kd site and they had these 18650 batteries.

And what was it that made you decide to post a new thread about them in the LED Flashlight section, rather than look for an existing thread about them in the Batteries section?

Merging the threads...

 

[seaside]

Re: new 18650 battery?

Cheap batteries including ultrafire's are bit more overrated than those of other brands, but all of us already somewhat... knew it.

Something i am worrying about new ultrafire 3000mAh is not its capacity, but its size. If it is more like 21700 than 18650, that will be a problem.

 

[csshih]

Hmm looks like China exports a lot of li-ions. I did hear about a short term limit on shipment by air that was related to safety/security concerns during the Olympics. I would assume that ban has passed.

oop! yea, indeed it has.

 

[Whitedog1]

What is about this ICR18650 2800mAh i found on eba*:

http://desc.shop.ebay.at/items/_W0Q...&_trksid=m270.l1313&_odkw=18650+mah&_osacat=0

oh: the Ultrafire @ 3000mAh are also on here already:

http://desc.shop.ebay.at/items/_W0Q...ksid=m270.l1313&_odkw=18650+2800mah&_osacat=0

The Ultrafire 18650 3000mAh batteries are protected - will it be possible to build an 5s 18.5V batterypack with theese cells? or will that burn the protection ciruit?

any idea? :candle:

btw: if you search on ebay for "18650 2800 mah" you will find some nice ICR18650 Cells.......so, only the quality question left....:thinking:

 

[taschenlampe]

Re: new 18650 battery?

LOL... UltraFire is claiming 3000maH. I believe the highest capacity from a top company is either 2700 or 2900maH for 18650 cells. I bet the UltraFIre is 2500 or less mah.

Your guessing seems to be pretty accurate!

Link

tl

 

[MattK]

Re: new 18650 battery?

Those tests are at 1A and 2A - iec standard is .5A for Li-Ion so it would be interesting to see .5A test results.

 

[Whitedog1]

a quick update to say that finally I found reliable sources for both Panasonic 2900mah and Sanyo 3000mah. I will get samples after Chinese new yer holidays and I will send them to Silverfox for testing.

In this way, we will know the better product between Samsung 2800mah, Panasonic 2900mah and Sanyo 3000mah. At the end I will offer the best in CPF MarketPlace 😎

Hey Xpea, whats the actual status? :thinking:

Is Silverfox already testing some of these cells?
when can we expect some results or a thread in the Marketplace?

greetings


Edit:
@MattK
Do you sell protection pcb for 18.5v 5cell battery packs?

 

[MattK]

Please PM me - I can't discuss that kind of stuff on CPF proper...I think.

 

[xpea]

Hey Xpea, whats the actual status? :thinking:

Is Silverfox already testing some of these cells?
when can we expect some results or a thread in the Marketplace?

greetings


Edit:
@MattK
Do you sell protection pcb for 18.5v 5cell battery packs?

Hello all,

back from holidays + business trip :wave:

As expected I got the samples of Panasonic 2900mah (2750mah minimum guaranteed) :



I will send out some tomorrow to Jens in Germany and Silverfox for testing.
In the meantime I will get a discharge tester very soon to see if they really hold their specs and I will publish here the results.

So expect a sales thread in market place in coming days 🙂


PS: regarding Ultrafire, sorry I cannot comment on these new 3000mah as I don't know them, but everybody knows the company history regarding their over-rated specs and their rubbish quality. I'm not interested by this kind of low end stuff :green:

 

[Whitedog1]

So expect a sales thread in market place in coming days 🙂

Great news!! What is about the 3000mAh Sanyo cells?

PS: regarding Ultrafire, sorry I cannot comment on these new 3000mah as I don't know them, but everybody knows the company history regarding their over-rated specs and their rubbish quality. I'm not interested by this kind of low end stuff :green:

Some german guy on "messerforum" tested some of these (look post nr. 69) - you'r right: dont trust Ultrafire

Edit: here is the test in english: KLICK

 

[xpea]

Great news!! What is about the 3000mAh Sanyo cells?




Some german guy on "messerforum" tested some of these (look post nr. 69) - you'r right: dont trust Ultrafire

Edit: here is the test in english: KLICK

For now the Sanyo 3000mah seems not to be genuine, but counterfeit... The vendor doesn't want to guarantee me a minimum capacity (should be around 2800mah) and I don't find any information on these cells. Moreover, official Sanyo distributor told me that 2600mah is right now the maximum capacity from Sanyo in 18650 size...

So I stay with the Panasonics for now.


PS: Thx for the ultrafire 3000mah test link. Well nothing to add except that Ultrafire will not get better reputation with these new cells

 

[xpea]

Good news,

just finished a first discharge test on a random PANASONIC 18650 2900mah sample. First time charge by Trustfire TR-001 at 500ma. Final voltage was 4.16A. Then wait 1 hour. Discharge by GY568+ tester at 500ma. End of test is achieved at 3.31V. For the final result, a picture worth a thousand words :



I believe after 4-5 charge/discharge break-in cycles, it should be able to reach easily 2950mah. well looks good so far 😀
doing now same test with another sample...

 

[Whitedog1]

Wow, that's really impressive!!!

I would say we see here the next step in capacity at the 18650 form factor!!! :thumbsup:

I need 10 😀

 

[Phaserburn]

PM sent...

 

[Neisius]

What kind of price are we talking about for these PANASONIC 18650 2900mah?

 

[cernobila]

Good news,

just finished a first discharge test on a random PANASONIC 18650 2900mah sample. First time charge by Trustfire TR-001 at 500ma. Final voltage was 4.16A. Then wait 1 hour. Discharge by GY568+ tester at 500ma. End of test is achieved at 3.31V. I believe after 4-5 charge/discharge break-in cycles, it should be able to reach easily 2950mah. well looks good so far 😀
doing now same test with another sample...

The question would be if they can fire up bulbs like WA1111, 1185, P5761 just like the AW 18650 cells can........maybe a dumb question but are these protected?