Clearance Sales: Manker E14 II / MK34 50% OFF

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JasonWW
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We talk about the 21700 quite a bit over here.
http://budgetlightforum.com/comment/1307025#comment-1307025

There is no magic to them, it’s just bigger and made by major battery companies. The 26650 size is not.

Just some notes:

The volume of the 21700 is right around 50% larger than the 18650, yet it doesn’t seem that much bigger.

The Samsung 30T is a beast of a cell. Only 3,000mah, but it’s internal resistance is about 10 to 12 milli ohms and can do 40A continous!

On the other extreme, the Samsung 48G is 4,800mAh and can do 10A continous (although for max life span they recommend 5A continous).

Cells like the 26650 Liitokala 5000mah blue and black can match the 48G in mah, but it can deliver 20A continous.

BTW, the 26650 volume is around double the 18650, but it’s not made by any of the big battery companies which is why we don’t see the same high level of “power density” such as a 7,000mah version.

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Macka17 wrote:

Those. would be better served (I think) with the existing 26650’s……………..
Which I also prefer with a larger? stronger light……………..
Hand gripping wise……..With a more comfortable grip in my hands, which are average sized…………………

WHY go backwards for some novelty?

It’s not going backwards, it’s going forward in a thinner cell.

Besides better capacity than an 18650, hand gripping wise it will be a more comfortable grip in my hands (vs 26650)

On some lights with a smaller head 26650 feels okay in the hand to me, (Thrunite TC20, EagleEye X7) but for lights with a larger head I usually prefer a thinner tube, I don’t hate 26650 on larger head lights with, but I think 21700 will be about perfect because 18650 is a bit thin for those.

So the “hand gripping” element is quite subjective and depends on personal preference, since there’s not many 21700 lights (yet) I’m happy Manker made this for 21700.

 

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Small size big capacity has been the trend of technology advancement for decades. I hope the same doesn’t apply to our planet

- Clemence

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clemence wrote:
Small size big capacity has been the trend of technology advancement for decades.

The 21700 is not a technology advancement, if that is what you were implying. It’s just a different sized container.

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clemence
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JasonWW wrote:
clemence wrote:
Small size big capacity has been the trend of technology advancement for decades.
The 21700 is not a technology advancement, if that is what you were implying. It’s just a different sized container.

I’m highly optimistic in the near future the capacity of 21700 will equals to current 26650

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clemence wrote:

I’m highly optimistic in the near future the capacity of 21700 will equals to current 26650

I am as well.

It's because 21700 cells will be made in Japan and all current 26650 cells are made in China.  :-)

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raccoon city wrote:

clemence wrote:

I’m highly optimistic in the near future the capacity of 21700 will equals to current 26650


I am as well.


It’s because 21700 cells will be made in Japan and all current 26650 cells are made in China.  alt=)" />

As long Ultr*fire doesn’t take the contract to make the 26650 then the future sale of 21700 will be bright. Otherwise there soon will be fiery 12.000mah 26650. Even Elon Musk will give up competing against them.

- Clemence

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clemence wrote:
JasonWW wrote:
clemence wrote:
Small size big capacity has been the trend of technology advancement for decades.
The 21700 is not a technology advancement, if that is what you were implying. It’s just a different sized container.

I’m highly optimistic in the near future the capacity of 21700 will equals to current 26650


Okay, so you believe Tesla when they say they will make a breakthrough in chemistry and have their 21700 cells achieving 5700-6000mah?

It’s a little hard to believe they will beat the big 4 of Sony, LG, Samsung and Panasonic. The current highest capacity is around 192mah/mm3. We will see if Tesla can reach 240mah/mm3. To me it’s seems doubtful, but given enough time it might happen.

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JasonWW wrote:
clemence wrote:
JasonWW wrote:
clemence wrote:
Small size big capacity has been the trend of technology advancement for decades.
The 21700 is not a technology advancement, if that is what you were implying. It’s just a different sized container.

I’m highly optimistic in the near future the capacity of 21700 will equals to current 26650


Okay, so you believe Tesla when they say they will make a breakthrough in chemistry and have their 21700 cells achieving 5700-6000mah?

It’s a little hard to believe they will beat the big 4 of Sony, LG, Samsung and Panasonic. The current highest capacity is around 192mah/mm3. We will see if Tesla can reach 240mah/mm3. To me it’s seems doubtful, but given enough time it might happen.

Well, it was hard for me to believe Cree would hit the 150 and then 200 lumens/watt in real world too.
Not just time needed, he needs more moneeeey. Loads of them.

- Clemence

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clemence wrote:

Well, it was hard for me to believe Cree would hit the 150 and then 200 lumens/watt in real world too.
Not just time needed, he needs more moneeeey. Loads of them.

- Clemence


I don’t pay much attention to emitter efficiency. What emitters are doing 200 lumens/watt?

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JasonWW wrote:
clemence wrote:

Well, it was hard for me to believe Cree would hit the 150 and then 200 lumens/watt in real world too.
Not just time needed, he needs more moneeeey. Loads of them.

- Clemence


I don’t pay much attention to emitter efficiency. What emitters are doing 200 lumens/watt?

This was 4 years ago:
http://www.cree.com/news-media/news/article/cree-announces-next-generati...

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clemence wrote:
JasonWW wrote:
clemence wrote:

Well, it was hard for me to believe Cree would hit the 150 and then 200 lumens/watt in real world too.
Not just time needed, he needs more moneeeey. Loads of them.

- Clemence


I don’t pay much attention to emitter efficiency. What emitters are doing 200 lumens/watt?

This was 4 years ago:
http://www.cree.com/news-media/news/article/cree-announces-next-generati...


Omg. So no new advancements in 4 years?

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Samsung does 220 lm/W. In mid-power LEDs.
We’ve seen similar efficiencies with high-power ones at mid-power currents. Actually even higher, though our measurements are not accurate enough…

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JasonWW wrote:
clemence wrote:
JasonWW wrote:
clemence wrote:
Small size big capacity has been the trend of technology advancement for decades.
The 21700 is not a technology advancement, if that is what you were implying. It’s just a different sized container.

I’m highly optimistic in the near future the capacity of 21700 will equals to current 26650


…..
It’s a little hard to believe they will beat the big 4 of Sony, LG, Samsung and Panasonic. …….

Tesla is Panasonic in terms of technology. Well at least that is their base, but likely they share new tech also as Tesla did hire some battery engineers directly. As of right now Panasonic is still heavily invested in Tesla.
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JasonWW wrote:
clemence wrote:
JasonWW wrote:
clemence wrote:
Small size big capacity has been the trend of technology advancement for decades.
The 21700 is not a technology advancement, if that is what you were implying. It’s just a different sized container.

I’m highly optimistic in the near future the capacity of 21700 will equals to current 26650


Okay, so you believe Tesla when they say they will make a breakthrough in chemistry and have their 21700 cells achieving 5700-6000mah?

It’s a little hard to believe they will beat the big 4 of Sony, LG, Samsung and Panasonic. The current highest capacity is around 192mah/mm3. We will see if Tesla can reach 240mah/mm3. To me it’s seems doubtful, but given enough time it might happen.

I don’t think it’s a matter of beating those 4 but using them. Lots of money involved here, those 4 are going to bring it up or work in some combination. The winner gets the contracts. Tesla is currently using Panasonic. However the military, and private sectors have also increased the demand for better. Improvements through joint ventures have been done before. The bonus is we get better batteries.

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JasonWW wrote:
clemence wrote:
Small size big capacity has been the trend of technology advancement for decades.

The 21700 is not a technology advancement, if that is what you were implying. It’s just a different sized container.
That depends on how you interpret the word “technology” here.

I understand you’re referring to the internal construction / chem etc. which is nothing new, but personally I consider the technology of higher capacity than 18650 in a cell smaller than 26650 to be a “technology advancement”.

.
I’m not “against” 26650 and I hope it never goes away, I love my 26650 lights! I just think 21700 is a great addition to the battery forms we use. personally I don’t view this a controversy, as seems to be developing in that C8F thread, just another cell size we can use and love. Love

 

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beam0 wrote:
JasonWW wrote:
clemence wrote:
Small size big capacity has been the trend of technology advancement for decades.

The 21700 is not a technology advancement, if that is what you were implying. It’s just a different sized container.
That depends on how you interpret the word “technology” here.

I understand you’re referring to the internal construction / chem etc. which is nothing new, but personally I consider the technology of higher capacity than 18650 in a cell smaller than 26650 to be a “technology advancement”.

.
I’m not “against” 26650 and I hope it never goes away, I love my 26650 lights! I just think 21700 is a great addition to the battery forms we use. personally I don’t view this a controversy, as seems to be developing in that C8F thread, just another cell size we can use and love. Love

I think pretty much the same.

Want to be able to keep all my lights working for a few more decades, so I hope 18650 sticks around even if the capacity does not jump much above what is out there today. The 26650 I also like just got some of those 6000mAh cells and that’s a lot of energy in that little cell. Even if today they can’t push it much further, who is to say that advancements targeted at the 21700 format will not be able to benefit the 26650 or the 18650. 21700 was a way to optimize the current technology in a cell for the electric car market. Where it goes from here, nil one knows how any chemical or material advances will perform in other cell formats.

It’s all good, but I really hope 18650 is still around in 30 years, if 26650 has to go I’m OK with that, but if possible keep that one too. Look forward to see where 21700 is going.

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StandardBattery wrote:
21700 was a way to optimize the current technology in a cell for the electric car market. Where it goes from here, no one knows how any chemical or material advances will perform in other cell formats.

It’s all good, but I really hope 18650 is still around in 30 years, if 26650 has to go I’m OK with that, but if possible keep that one too. Look forward to see where 21700 is going.


I believe they settled on the 21700 for a size limit due to being able to keep it cool. A diameter larger than this makes it harder for the water based cooling system to reach the core of the battery.

I would really love it if one of the big four battery companies actually made a 26650. Then we would have some real performance. LOL

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There were several reasons they decided 21700 was the best compromise for the chemistry and application.

Yes it would be nice if there was one of the big companies doing 26650, but with the latest 5800/6000mAh cells I don’t really think we have too much to complain about. If they can push it to 8-9-10Ah and maintain the high current capacity we would be in heaven and I think some electric vehicles like e-bikes, scooters, and unicycles would get very interested. Maybe even some hybrid cars. For flashlights… I can live quite happy with where they are.

I’m just enjoying what we have, people who didn’t grow up lugging Gell battery packs around or dealing with NiCADs and such thing, maybe just can’t appreciate the advancements that have been made in their life time. The cat ran out of 9-lives, and the Energizer bunny died long ago, but some companies try to keep him alive in our memories because it helps them.

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Hello guys, we have released new model Manker MK39 Ranger. Do you like it? 

Mail:sales@mankerlight.com

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Mankerlight wrote:

Hello guys, we have released new model Manker MK39 Ranger. Do you like it? 

YES! Thumbs Up Beer

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If the NW version is selected (NW:1* Cree XHP35 HI+8* Nichia 219C) does this mean the XHP35 HI is also NW?

What is the CCT for each emitter type (the XHp35 and the Nichia 219)?

What is the current requirement for each 18650 cell?

 

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Quesion1: If the NW version is selected (NW:1* Cree XHP35 HI+8* Nichia 219C) does this mean the XHP35 HI is also NW?

Answer1: Yes.

 

Question2: What is the CCT for each emitter type (the XHp35 and the Nichia 219)?

Answer2: 4000k

 

Question3: What is the current requirement for each 18650 cell?

Answer3: It's no less than 10A current. we high recommend you choose high drain 18650 batteries. 

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Thanks for the answers!

4000K is a bit on the warm end of neutral, 5000K would have been perfect IMO, but I suppose 4000K would please users that prefer a warmer tint.

Now I’m curious what is the CCT’s of the CW version, would you please post it also?

Since this is a $200.00 flashlight I would need to love it, not just like it.

 

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beam0 wrote:
Thanks for the answers! 4000K is a bit on the warm end of neutral, 5000K would have been perfect IMO, but I suppose 4000K would please users that prefer a warmer tint. Now I'm curious what is the CCT's of the CW version, would you please post it also? Since this is a $200.00 flashlight I would need to love it, not just like it.

 

Thanks for your question. It is 6500K. 

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Vinh already stated that he intends to make a 9*XHP35 HI variant.

Wow.

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Is the quad optic used in this light the same proprietary one as in other Manker lights, or is it a Carclo optic?

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Mankerlight wrote:

beam0 wrote:
Thanks for the answers! 4000K is a bit on the warm end of neutral, 5000K would have been perfect IMO, but I suppose 4000K would please users that prefer a warmer tint. Now I’m curious what is the CCT’s of the CW version, would you please post it also? Since this is a $200.00 flashlight I would need to love it, not just like it.
Thanks for your question. It is 6500K. 

For me personally, at $200.00 I’d need to reconsider on this one…

4000K probably too warm
6500K definitely too cold

For NW, 5000K would have been ideal.

 

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Agro wrote:
Vinh already stated that he intends to make a 9*XHP35 HI variant.

Wow.


Why????

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will34 wrote:
Is the quad optic used in this light the same proprietary one as in other Manker lights, or is it a Carclo optic?

Judging by pics – definitely not Carclo, likely the one in the other Mankers.
JasonWW wrote:
Agro wrote:
Vinh already stated that he intends to make a 9*XHP35 HI variant.

Wow.


Why????

XHP35 HI is much more efficient than XP-L HI. Especially at high currents. I expect such mod to turn this light from a good flooder to a great flooder (while it remains OK thrower at the same time).

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