Sanyo NCR20700B 4250mAh cell is here!

[okashira]

Well there is also the NCR20700A, lower 3200 mAh but higher C rate.

Didn't know this, that's GOLD ! http://lygte-info.dk/review/batteries2012/Sanyo%20NCR20700A%203100mAh%20(Red)%20UK.html

At maximum rated current they are up to 81°C

30A at only 81°C , what is the magic trick behind this ?

A Sony VTC5A goes 92° C at 30A end of discharge A LG HB2 is 79° C 30A end of discharge, is the temp measured by lygte a full discharge cycle temp?

I seriously doubt that.

 

[Vanarian]

Well there is also the NCR20700A, lower 3200 mAh but higher C rate.

Didn't know this, that's GOLD ! http://lygte-info.dk/review/batteries2012/Sanyo%20NCR20700A%203100mAh%20(Red)%20UK.html

At maximum rated current they are up to 81°C

30A at only 81°C , what is the magic trick behind this ?

A Sony VTC5A goes 92° C at 30A end of discharge A LG HB2 is 79° C 30A end of discharge, is the temp measured by lygte a full discharge cycle temp?

I seriously doubt that.

Please don't : https://www.e-cigarette-forum.com/forum/threads/lg-hb2-30a-1500mah-18650-retest-results-a-great-30a-battery-about-equal-to-vtc3.734142/

At 30A continuous the temperature rose to 79°C.

Now using the LG HB2 myself for my build because it was, until the NCR20700A, the only cool discharge cell available. Even with only 1500mAh this was my first criteria. Now a whooping 3100mAh comes to the stage with even better specs and temp, hats up.

 

[TheBeastie]

Just being doing the rounds in overviewing the cost of cells lately..
Its interesting to note that this cell initially sold for €14 but is now €4.95, lol
https://ru.nkon.nl/review/product/list/id/2363/category/49/

Also just fixing the review URL posted earlier in the thread as its one of those odd ones that deforms once posted in the forum normally.
Sanyo NCR20700B 4250mAh

Other thing I have noted looking at all the cells out there, 26650 cells are still bad value.

 

[Pajda]

I start a few weeks ago cycle life test for this NCR20700B cells from Nkon. First result of my standard test conditions (0,5C charge with 100mA cutt-off - 1C discharge) at 100% DoD and 50% DoD shows that cycle life (capacity drop) is little worse than the best of HE(high energy) 18650 cells Samsung 35E, Sanyo GA and LG MJ1.

 

[macribs]

Just being doing the rounds in overviewing the cost of cells lately..
Its interesting to note that this cell initially sold for €14 but is now €4.95, lol
https://ru.nkon.nl/review/product/list/id/2363/category/49/

Also just fixing the review URL posted earlier in the thread as its one of those odd ones that deforms once posted in the forum normally.
Sanyo NCR20700B 4250mAh

Other thing I have noted looking at all the cells out there, 26650 cells are still bad value.

Are you sure that price is right? seems almost too low to be correct. Best price I've seen are around 7$ per cell MQO >100 cells.

 

[Philaphlous]

So is the 20700 battery going to be obsolete? If Tesla is truly making a 21700 battery with incredible capacity ratings the 20700 might be a short lived battery type...

 

[macribs]

So is the 20700 battery going to be obsolete? If Tesla is truly making a 21700 battery with incredible capacity ratings the 20700 might be a short lived battery type...

Well the 20700 batteries are available now, the 21700 is not. And even when 21700 is available for the public, will it be that much better? I mean most likely the chemistry will be the same as we already know. That means the added capacity will come from larger internal space over the 18650. I do like the added capacity, and rumors has been that they new 21700 cells from tesla/panasonic will be around 5200 mAh. That is nice, but hardly enough to make 20700 obsolete. At least not any day soon. Mostly because the 20700 already had a significant price drop since first introduced. When 21700 is readily available expect to pay early adopter price per cell. I wouldn't be surprised to see price per unit 3 times higher then the 20700 at launch. Maybe even slightly more.

Also I can imagine the availability might not be all that in the beginning.

 

[okashira]

Well there is also the NCR20700A, lower 3200 mAh but higher C rate.

Didn't know this, that's GOLD ! http://lygte-info.dk/review/batteries2012/Sanyo%20NCR20700A%203100mAh%20(Red)%20UK.html

At maximum rated current they are up to 81°C

30A at only 81°C , what is the magic trick behind this ?

A Sony VTC5A goes 92° C at 30A end of discharge A LG HB2 is 79° C 30A end of discharge, is the temp measured by lygte a full discharge cycle temp?

I seriously doubt that.

Please don't : https://www.e-cigarette-forum.com/forum/threads/lg-hb2-30a-1500mah-18650-retest-results-a-great-30a-battery-about-equal-to-vtc3.734142/

At 30A continuous the temperature rose to 79°C.

Now using the LG HB2 myself for my build because it was, until the NCR20700A, the only cool discharge cell available. Even with only 1500mAh this was my first criteria. Now a whooping 3100mAh comes to the stage with even better specs and temp, hats up.

Whoops.. I had read HB2 as HG2. Certainly the 1500mah cell can do it