Sanyo UR18650F Cell Specifications

LithiumSolar

Administrator
Staff member
Joined
Oct 8, 2016
Messages
2,388
Warning: The information in this thread was obtained from various sources on the Internet, including any datasheets linked below, and is provided for reference only. It is not guaranteed to be accurate. To prevent fire or personal injury, never charge or discharge a cell before verifying the information yourself using the original specifications sheet provided by the manufacturer.

Brand:Sanyo
Model:UR18650F
Capacity:2500mAh Rated
Voltage:3.70V Nominal
Charging:4.20V Maximum
1750mA Standard
2500mA Maximum
Discharging:3.00V Cutoff
2500mA Standard
5000mA Maximum
Description:Red Cell Wrapper
Blue (Cyan) Insulator Ring
18650 Form Factor


Data References:
http://www.batteryonestop.com/baotongusa/products/datasheets/li-ion/sanyo-ur18650f-26a.pdf

Pictures:

image_idhzwx.jpg

image_tmeeku.jpg

image_fzplsv.jpg

image_ufnrql.jpg

image_qwkaqh.jpg

image_ngcjov.jpg

image_jsuzfa.jpg
 

jesusangel

Member
Joined
May 28, 2017
Messages
278

ChrisD5710

Active member
Joined
Sep 13, 2017
Messages
162
I have bumped into similar cells, but these are marked UR18650FM not as text on the wrapper but as tiny bumps in the wrapper. You can only see this tiny text if you hold the cell into a bright light an turn the cell around until You spot the text.
It says "SANYO L "LR reversed, some kind of logo, I think", UR18650FM R1122", "N48B".

2 cells has "O22B" as the last line, it must be some kind of date because these cells are much healthier.

ChrisD
 

Detritalgeo

Member
Joined
Nov 29, 2017
Messages
34
As others have stated, I found some that have UR18650FM R1122 N41B embossed on it.

The wrapper is a much more translucent red than other Sanyo wrappers, and it has a light teal ring.

This paper states the 'FM' variant is 2600 mAh (https://minerva-access.unimelb.edu....OA_Muenzel_Comparative-testing.pdf?sequence=1)

As does this link:http://www.simpower.co.nz/product_info.php/cPath/47_54_64/products_id/5816

...and this link...ftp://ftp.ute.com/PM/Batteries/1400-202371G.pdf



More F datasheets here:http://shop.battex.cz/pdf/1S1P-UR18650FM-K.pdf
and here:https://www.master-instruments.com.au/file/58592/1/Sanyo-UR18650FM.pdf


image_qoxojz.jpg

image_ywdlvh.jpg

image_rvrwxu.jpg
 

Russell Smith

New member
Joined
Aug 29, 2017
Messages
3
90% of my UR18650F's have green isolator rings...

I've also got two different wrap colours... older cells are red whereas the newer cells are slightly pinker..

Infront of me I have

UR18650F R1112 - Red/Green
UR18650F M50A - Red/Cyan
and
UR18650F T27C - PinkyRed/Green

Hope this helps (more likely to further complicate things... but oh well).
 

hazSolar

New member
Joined
Aug 12, 2018
Messages
16
To help those wondering about age, here's how you decode Sanyo's date. It is usually on it's own line, not with Sanyo or 18650.

1. The first letter = year. K =2006, L = 2007, M = 2008, N = 2009, O = 2010, P = 2011, Q = 2012, and so on.
2. The latter 3 numbers+letter = week.

So just grabbing one on my bench, it has L28A. So it is from 2007 on the 28th week (mid July).
 

rhedbatt

Member
Joined
Jan 27, 2019
Messages
32
I also have URI18650F 2.4AH but in pink one (black top insulator) and its not getting hot when being charged unlike the red ones seems like a goodcell. URI18650F(pink)/URI18650FM(reflective red)/URI18650(red)
see pictures.

image_cvdxff.jpg

image_msfhaw.jpg

image_pekksr.jpg

image_avsmdl.jpg
 

DCkiwi

Active member
Joined
Sep 11, 2017
Messages
189
hazSolar said:
To help those wondering about age, here's how you decode Sanyo's date. It is usually on it's own line, not with Sanyo or 18650.

1. The first letter = year. K =2006, L = 2007, M = 2008, N = 2009, O = 2010, P = 2011, Q = 2012, and so on.
2. The latter 3 numbers+letter = week.

So just grabbing one on my bench, it has L28A. So it is from 2007 on the 28th week (mid July).


Very useful, thankyou.

Such a shame there is no wiki here to get this into a place where it will be seen.
 

thanar

Active member
Joined
Feb 12, 2018
Messages
154
Just got a few of those F SANYO cells, green ring, 2400mAh according to the (probably 3rd party) battery pack. Those F cells really have messed things up!


image_yzckcb.jpg
 

Wolf

Well-known member
Joined
Sep 25, 2018
Messages
1,459
thanar said:
Just got a few of those F SANYO cells, green ring, 2400mAh according to the (probably 3rd party) battery pack. Those F cells really have messed things up!

Yes I agree I have always thought the green ring Sanyos are UR18650FB 2400 mAh cells and the Blue/Cyan are the UR18650F 2500mAh.

But I got a bunch of the green ring ones and they plainly say UR18650F on them. Throws the database off by 100mAh.
They are testing out at between 2100mAh to 2300mAhwith an IR of 51m? to 48m?.
I guess Sanyo lost the B stencil in this batch. Or maybe they want to see how much they can mess with the cellharvesting guys like us.
Or maybe because Panasonic got involved. Who knows.
Wolf

image_shgxdf.jpg



PritiAgarwal14 said:
How many kinds of batteries are there? Can someone please tell me?

I personally have 250 different model numbers in my database.

See the SLS database here for a more complete list.https://secondlifestorage.com/celldatabase.php

Wolf
 

thanar

Active member
Joined
Feb 12, 2018
Messages
154
Have pink UR18650Fs out of a SONY battery pack with BLACK ring and battery pack capacity of 4400mAh. Also got F imposed on negative end but no other letters.
 

100kwh-hunter

Active member
Joined
Mar 2, 2019
Messages
693
To make things more complicated
I found 6 of them ur18650fH
this was on the pack:
43Wh /10.8V = 3.98Ah
3.98Ah /2 parallel = 1.99Ah per cell.
Tested not so bad:

:mad:fighting with exls again to copy and past
Inshort: from 84 to 88 soh with a ir from 58 to 64

I don't think i am going to use them.
I found also other sanyo's with 60 ohm ish, could be normal for this chemistry? ur18650a
I found also a lot of sanyo's between 33-36 ohm. ur18650ea
No heaters found (5 or 6 out of ~400 oke:))


They got white insulator rings and there normal red color.
Pictures will follow.
 

100kwh-hunter

Active member
Joined
Mar 2, 2019
Messages
693
Some trick:
Take a white board marker (Henry Ford: black is the best)and paint the whole cell if you don't find anything.
But if you find something it will help you to take youre troubles away.
 

kc8adu

Member
Joined
May 22, 2019
Messages
105
The reversed UR logo denotes a ul recognised componant.
ChrisD5710 said:
I have bumped into similar cells, but these are marked UR18650FM not as text on the wrapper but as tiny bumps in the wrapper. You can only see this tiny text if you hold the cell into a bright light an turn the cell around until You spot the text.
It says "SANYO L "LR reversed, some kind of logo, I think", UR18650FM R1122", "N48B".



ChrisD
 

DCkiwi

Active member
Joined
Sep 11, 2017
Messages
189
kc8adu said:
The reversed UR logo denotes a ul recognised componant.


as one of my podcast favorites liked to say ... "%#$'in prove it" ...

but seriously ... interesting insight you have ... any sources / references to this claim? (not doubting, just keen for ... more info!). thankyou.
 

rev0

Active member
Joined
Oct 3, 2017
Messages
373
Found what I think is a UR18650F based on the ring color, but there's no discernible text on the cell wrapper at all. Pictures below:


image_wikblo.jpg


image_nseqju.jpg


image_eevnww.jpg


There is text under the wrapper as follows:
C
NGFM4CD
030484

And on the bottom:
5FN0
 

gutyex

New member
Joined
Jan 17, 2018
Messages
7
rhedbatt said:
I also have URI18650F 2.4AH but in pink one (black top insulator) and its not getting hot when being charged unlike the red ones seems like a goodcell. URI18650F(pink)/URI18650FM(reflective red)/URI18650(red)
see pictures.

image_cvdxff.jpg

image_msfhaw.jpg

image_pekksr.jpg

image_avsmdl.jpg

I've got 6 cells like the black topped one in your pictures, all heating once they get close to 4.2v - seems like they might be intended to top out at 4.1 rather than 4.2?
 

resr

New member
Joined
Oct 21, 2020
Messages
20
I have 5 UR18650F L37 with red ring and almost translucent red sleeve. Cells have LHTFJ15 112875 printed onto metal under the sleeve._
 
Top