CHEAP NEW ORIGINAL 18650 BATTERY CELLS AND PACKS

Place for dealers to post items for sale.
ozon22   1 µW

1 µW
Posts: 1
Joined: Feb 17 2016 11:33pm

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by ozon22 » Feb 17 2016 11:39pm

will you ship to Canada?

cwah   10 GW

10 GW
Posts: 4226
Joined: Jul 24 2011 5:42am
Location: Between paris and london

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by cwah » Feb 18 2016 3:51am

Any cycling data?

User avatar
Offroader   100 MW

100 MW
Posts: 2618
Joined: Sep 08 2013 9:03pm
Location: USA

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by Offroader » Feb 19 2016 11:28pm

I got 3350 MAH (capacity test only) with the Sanyo cells at 1 amp. Which is around what others got at 1 amp, and basically meets the cell capacity specification. Cells have July 2015 date I believe.

I had to actually make sure to cycle the battery at around 25C, because below this temp you will get noticeably lower capacity. My basement is around 14C in the winter so I had to improvise to cycle the cell at 25C.

I also had to make sure to get the cell to exactly 4.200 volts before discharge.

vsop   1 µW

1 µW
Posts: 4
Joined: Aug 24 2015 8:55am

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by vsop » Feb 21 2016 5:25pm

Im returning customer - cells are great and the prices beautiful. I already recelled 3 of my Bosch Classic bateries from 288WH to 500. Everything works fine.

vsop   1 µW

1 µW
Posts: 4
Joined: Aug 24 2015 8:55am

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by vsop » Feb 21 2016 5:26pm

Image

VicDiver   1 µW

1 µW
Posts: 2
Joined: Jan 19 2016 12:17am

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by VicDiver » Feb 25 2016 10:52pm

Pm sent looking for around 150 cells to start and another 300 after shipped to Canada

User avatar
Cowardlyduck   100 MW

100 MW
Posts: 2906
Joined: Jun 26 2011 8:41pm
Location: Canberra, ACT, Australia

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by Cowardlyduck » Feb 25 2016 10:56pm

vsop wrote:Image
Do you have a source or name for those cell holders?
They are perfect for putting the cells as close together as possible. :)

Cheers
My stuff:
Ebike Garage - My YouTube Ebike ramblings.
Cowardlyducks - Videos - Ride videos
BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

For Sale:
Custom made 18650/21700 battery packs - Australia only
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

User avatar
tumich   100 W

100 W
Posts: 212
Joined: May 28 2014 3:28am
Location: EU

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by tumich » Feb 26 2016 1:01am

There are holders which are inside Bosch PowerPack's.
My ebikes:
1. Sur ron

Cheap, new, oryginal li-ion cells 18650, 21700 up to 5000mAh --> https://endless-sphere.com/forums/viewt ... 31&t=61608

markz   100 GW

100 GW
Posts: 11427
Joined: Jan 09 2014 11:38pm
Location: Alberta Canada

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by markz » Feb 26 2016 2:00pm

tumich wrote:There are holders which are inside Bosch PowerPack's.
BINGO, I guessed right in my previous post! Someone asked, I threw out my guess, went unanswered, asked again and answered.

User avatar
Cowardlyduck   100 MW

100 MW
Posts: 2906
Joined: Jun 26 2011 8:41pm
Location: Canberra, ACT, Australia

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by Cowardlyduck » Feb 26 2016 10:43pm

Thanks for the info.
That sucks they are Bosch only. I would have like to use some of them for my builds.
Oh well...a minute amount of weight savings without them at least. :)

Cheers
My stuff:
Ebike Garage - My YouTube Ebike ramblings.
Cowardlyducks - Videos - Ride videos
BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

For Sale:
Custom made 18650/21700 battery packs - Australia only
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

User avatar
ridethelightning   1 MW

1 MW
Posts: 1912
Joined: Jul 21 2013 9:48pm

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by ridethelightning » Mar 01 2016 9:49pm

220 LG mg1 cells, arrived sept14, been running solid ever since, still going strong!
thanks again tumich!

User avatar
DasDouble   100 kW

100 kW
Posts: 1176
Joined: Jul 12 2015 1:35pm
Location: GERMANIA :D

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by DasDouble » Mar 08 2016 6:56pm

pm send.
Mechatronics-Engineering Student
-Built own ebike: ✔
-Built own 3.2kWh LiIon battery (300Amps): ✔
-Overtake Porsche with own Ebike: ✔
-Take off with ebike: ✖

~14kW, 3.2kWh LiIon, QS 205 8ml ff, hubsink

markz   100 GW

100 GW
Posts: 11427
Joined: Jan 09 2014 11:38pm
Location: Alberta Canada

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by markz » Mar 08 2016 7:15pm

My birthday is coming, and I need something more then 60V and 8 to 9Ah of battery pack. Summer is coming, seems like a perfect time to splurge on some 3.5Ah GA's.

Whats the transit time on these batteries again, to North America? Lets say BC, AB or West coast of USA.

User avatar
DasDouble   100 kW

100 kW
Posts: 1176
Joined: Jul 12 2015 1:35pm
Location: GERMANIA :D

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by DasDouble » Mar 09 2016 5:33am

A Guy told me that the cells wouldnt work correctly for high voltage like 74 Volts, 20Ah, 22s. What do you guys think? Want to buy the Sanyo ones because people here say they are as good as Panasonic. :roll:
Mechatronics-Engineering Student
-Built own ebike: ✔
-Built own 3.2kWh LiIon battery (300Amps): ✔
-Overtake Porsche with own Ebike: ✔
-Take off with ebike: ✖

~14kW, 3.2kWh LiIon, QS 205 8ml ff, hubsink

up0   10 mW

10 mW
Posts: 34
Joined: Apr 02 2014 4:31am

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by up0 » Mar 09 2016 5:52am

> the cells wouldnt work correctly for high voltage like 74 Volts

I am sorry you have to listen to a "Guy" that tells you that kind of non-sense ;-)
Better not to listen to him any more, because the statement in itself is ridiculous:
The individual cell in the chain knows nothing about the total Voltage of the pack.
Each of them just sees their own 3.7-4.2V
You can put as many as you like in a series - with any type of cells.

> Want to buy the Sanyo ones because people here say they are as good as Panasonic. :roll:

Read here: https://en.wikipedia.org/wiki/Sanyo
"On December 21, 2009, Panasonic completed a 400 billion yen ($4.5 billion) acquisition of a 50.2% stake in Sanyo, making Sanyo a subsidiary of Panasonic."
Also read Here: https://www.electricbike.com/18650-cells-for-e-bike/
and look for : '' What happened to Sanyo? "

Cheers, Ulli

Hummina Shadeeba   10 MW

10 MW
Posts: 2305
Joined: Apr 25 2014 10:26pm
Location: sausalito cali..up the hill in front of the cruising club.

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by Hummina Shadeeba » Mar 09 2016 12:47pm

im not trying to promote the idea that the cells cant do such high voltage but wouldnt each cell in series add its voltage to the next so that the final cell would experience the high voltage?

opperpanter   100 W

100 W
Posts: 297
Joined: Sep 20 2014 6:36am
Location: The Netherlands

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by opperpanter » Mar 09 2016 1:18pm

Hummina Shadeeba wrote:im not trying to promote the idea that the cells cant do such high voltage but wouldnt each cell in series add its voltage to the next so that the final cell would experience the high voltage?
No, it's all relative.

up0   10 mW

10 mW
Posts: 34
Joined: Apr 02 2014 4:31am

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by up0 » Mar 09 2016 2:07pm

> wouldnt each cell in series add its voltage to the next so that the final cell would experience the high voltage?

I looked for one of these "Water Analogy" pictures to illustrate, but couldn't find anything suitable.
So I modified one I found on the web.
New additions on the left of the water-tower:

Image

I hope it is self-explaining?

Darn it - of course right after posting this, I found a ready-made picture that fits:
Image

Ulli
Attachments
water_tower_4.jpg
water_tower_4.jpg (66.79 KiB) Viewed 1930 times
51-potential-difference-current-resistance-3-728.jpg
51-potential-difference-current-resistance-3-728.jpg (91.09 KiB) Viewed 3065 times

Hummina Shadeeba   10 MW

10 MW
Posts: 2305
Joined: Apr 25 2014 10:26pm
Location: sausalito cali..up the hill in front of the cruising club.

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by Hummina Shadeeba » Mar 09 2016 2:24pm

wouldnt it go from 12 volts, to 24, then 36 ...etc?

up0   10 mW

10 mW
Posts: 34
Joined: Apr 02 2014 4:31am

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by up0 » Mar 09 2016 3:18pm

> wouldnt it go from 12 volts, to 24, then 36 ...etc?

I was trying to stress the point that each battery only "LIFTS" the water by "12V".
Of course the potential of the water is getting higher and higher (24,36...)
But the individual battery doesn't care.

You can also think of it like a series or little locks that block water:
Each small lock only has to withstand the "pressure" of 12V.
Image

Each of these locks does not care at all that there is another lock above or below it.
But if you run a pipe from the highest point down to the lowest, it will see the FULL pressure of all accumulated heights.

Ulli

Hummina Shadeeba   10 MW

10 MW
Posts: 2305
Joined: Apr 25 2014 10:26pm
Location: sausalito cali..up the hill in front of the cruising club.

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by Hummina Shadeeba » Mar 09 2016 3:21pm

I see. While in series the voltages add up but each battery only has a voltage difference of 12 volts that it will experience.

markz   100 GW

100 GW
Posts: 11427
Joined: Jan 09 2014 11:38pm
Location: Alberta Canada

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by markz » Mar 09 2016 3:36pm

DasDouble wrote:A Guy told me that the cells wouldnt work correctly for high voltage like 74 Volts, 20Ah, 22s. What do you guys think? Want to buy the Sanyo ones because people here say they are as good as Panasonic. :roll:
Voltage does not matter, its the discharge you need to pay close attention to, I believe both these current batteries are 8 to 10A of discharge. Unlike a 25R battery which is much much more then that. Keep in mind however that the more battery strings you put in parallel, the higher your discharge can be and obviously the higher your Ah.

Simple example using 3.3V nominal, 3.5Ah and 10Amax discharge batteries.
#series and 2 parallel, whatever voltage and 20Amax discharge at 7Ah.
1S-10P then you have nominal voltage of 3.3V and 100Amax discharge at 35Ah.
10S10P is 33Vnominal and 35Ah at 100Amax discharge
30S30P is 99V, 105Ah and 300Amax discharge.

*So you buy/build a pack in terms of VOLTAGE to suit your controller, and/or speed you want. This is the series part, 1S, 10S, 30S. Then you want a certain Ah for the distance you want to travel, this is the parallel part or P in the numbers given. 1S10P, 10S10P, 30S30P. Discharge is yet another factor. Too low a discharge battery and you will burn the batteries up, going up hills, too heavy a load on bike, etc etc etc.

Voltage is added in series. Ah is added in parallel.
I struggled with the discharge aspect myself, but you add it just like Ah in parallel. So if you have 3.5Ah batteries as my examples are, for the current battery Tumich is selling.....then 10S and 10P would indicate 33Vnominal for 3.3Vnominal batteries, 35Ah (3.5Ah for each battery times 10) and a discharge of 100Amax, because the batteries are rated for 10Amax discharge. These are just examples, if your batteries are different then substitute in different numbers. I will summarize again.


Voltage is added in series, and disregarded in parallel. 10S10P you go 3.3Vnominal x 10 = 33Vnominal pack.

Ah is added in parallel, disregard series. So 10P would be = Ah of battery times 10. 3.5Ah x 10 = 35Ah.
Example given: 33Vnominal 35Ah pack.

Discharge is similar to Ah in formual/calcuation. If you have 10S10P of 10Amax discharge batter
Example given: 33Vnom. 35Ah and 100Amax discharge.

Hummina Shadeeba   10 MW

10 MW
Posts: 2305
Joined: Apr 25 2014 10:26pm
Location: sausalito cali..up the hill in front of the cruising club.

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by Hummina Shadeeba » Mar 09 2016 3:47pm

I wonder about "burst" max. Rarely do I see it posted by manufacturers and doesn't seem to be a standard test. The best info I've found is that as long as the cells aren't getting too hot (how hot is too hot?) they will just experience voltage sag and less capacity. If that's the case no problem but at some point a high or long burst equates to "damage" with less capacity with further charging and maybe they will shut down and not produce any current

can you generalize about what the burst would be based on he continuous max?

up0   10 mW

10 mW
Posts: 34
Joined: Apr 02 2014 4:31am

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by up0 » Mar 09 2016 4:22pm

Guys, please don't invent new and confusing terms for existing terms:
"DISCHARGE" is a very misleading term for what is really "Current" (measured in Ampere)!

> Voltage does not matter, its the discharge you need to pay close attention to,
> Simple example using 3.3V nominal, 3.5Ah and 10Amax discharge batteries.


If you read the Wikipedia page on CURRENT: https://en.wikipedia.org/wiki/Electric_current
you will not find the word 'discharge' used anywhere on the page!
When I read "discharge" I immediately think of https://en.wikipedia.org/wiki/Electric_discharge : Sparcs and electric Arcs!

Same with "BURST" :
> Rarely do I see it posted by manufacturers and doesn't seem to be a standard test.

Of course you don't see it posted, because it is no standardized term.

> they will shut down and not produce any current

@Hummina: I suggest that you go back to your physics text-book from school or find some Youtube videos on Electricity basics.
I really don't mean that as an insult, but as an honest and friendly advice!
This is a post about 18650 Cells, and not really the place to explain the very basics of electricity.

Thanks for understanding,
Ulli

User avatar
macribs   1.21 GW

1.21 GW
Posts: 3676
Joined: Jul 22 2014 5:59pm

Re: BRAND NEW CELLS 18650 SAMSUNG/SANYO/PANASONIC 3500mAh

Post by macribs » Mar 09 2016 4:40pm

up0 wrote:Guys, please don't invent new and confusing terms for existing terms:
"DISCHARGE" is a very misleading term for what is really "Current" (measured in Ampere)!

> Voltage does not matter, its the discharge you need to pay close attention to,
> Simple example using 3.3V nominal, 3.5Ah and 10Amax discharge batteries.


If you read the Wikipedia page on CURRENT: https://en.wikipedia.org/wiki/Electric_current
you will not find the word 'discharge' used anywhere on the page!
When I read "discharge" I immediately think of https://en.wikipedia.org/wiki/Electric_discharge : Sparcs and electric Arcs!

Same with "BURST" :
> Rarely do I see it posted by manufacturers and doesn't seem to be a standard test.

Of course you don't see it posted, because it is no standardized term.

> they will shut down and not produce any current

@Hummina: I suggest that you go back to your physics text-book from school or find some Youtube videos on Electricity basics.
I really don't mean that as an insult, but as an honest and friendly advice!
This is a post about 18650 Cells, and not really the place to explain the very basics of electricity.

Thanks for understanding,
Ulli

Well almost everywhere you see 18650 cells or Lipo or Lifepo4 you will see some reference to C value. High C value means battery can discharge fast, and in real life that means you can dump an ton of amp into controller and motor very fast. That will be important for fast acceleration.

Post Reply