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Need some help to ID the Li-ion cell
#1
Hi guys i am new to the Li-Ion thing and planning to build some stuff 

I have recover some cell from an Dell WW16 type laptop back
Below are the laptop battery info:
Dell
Type:WW116
Capacity:56Wh
Rating:11.1V

The cells inside is layout in 3S2P

  
the cell are in red wrapper and with the printing below
C
MF1M4C9
129778

i tried to google and alibaba it for some info but none is found
i try the cell database also cant find it

anyone can give me some insight on how to search it or anyone got the specs of these cell?
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#2
Please take photos. Wrapper and top colours help identify a cell.
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#3
(08-28-2019, 05:02 AM)Lockon Wrote: the cell are in red wrapper

SANYO. Look at that red wrapper at different angles, there should be a marking embossed which is not so easy to see.
LiFePO4: QB26650 2500mAh 50A vs A123 ANR26650M1B: https://youtu.be/GOSkte11lRc

Yinlong LTO Lithium Titanate safety tests: https://youtu.be/eAUYbSDEy6I
Toshiba SCiB LTO Lithium Titanate safety tests: https://youtu.be/XsrRDZxEFQE

XTAR DRAGON 4-slot battery tester review: https://youtu.be/S6yVMsIuauE
Miboxer C4-12 4 slot x 3.0A charger review: https://youtu.be/X-ww1YALjvU
Miboxer C2-4000 smart battery tester review: https://youtu.be/jrbJceNXv1g

Samsung 33J for TESLA: https://youtu.be/7FMxgMmPeh4
Samsung 40T - a high drain 35A 21700 cellhttps://youtu.be/lxgKWiQ9580
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#4
(08-28-2019, 05:29 AM)Geek Wrote: Please take photos. Wrapper and top colours help identify a cell.
i have attached the image in my inital post

(08-28-2019, 05:48 AM)thunderheart Wrote:
(08-28-2019, 05:02 AM)Lockon Wrote: the cell are in red wrapper

SANYO. Look at that red wrapper at different angles, there should be a marking embossed which is not so easy to see.
i did see a M25A embossed on the wrapper.Try very hard to get an image of it.
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#5
(08-28-2019, 09:53 AM)Lockon Wrote: i did see a M25A 
Nothing else?
LiFePO4: QB26650 2500mAh 50A vs A123 ANR26650M1B: https://youtu.be/GOSkte11lRc

Yinlong LTO Lithium Titanate safety tests: https://youtu.be/eAUYbSDEy6I
Toshiba SCiB LTO Lithium Titanate safety tests: https://youtu.be/XsrRDZxEFQE

XTAR DRAGON 4-slot battery tester review: https://youtu.be/S6yVMsIuauE
Miboxer C4-12 4 slot x 3.0A charger review: https://youtu.be/X-ww1YALjvU
Miboxer C2-4000 smart battery tester review: https://youtu.be/jrbJceNXv1g

Samsung 33J for TESLA: https://youtu.be/7FMxgMmPeh4
Samsung 40T - a high drain 35A 21700 cellhttps://youtu.be/lxgKWiQ9580
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#6
(08-28-2019, 10:13 AM)thunderheart Wrote:
(08-28-2019, 09:53 AM)Lockon Wrote: i did see a M25A 
Nothing else?
Ya thats from the 2 cell i have now
i will check the remain 4 cell once i am home
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#7
Knowing Dell battery packs as well as I do esp. one of my favorites the 56Wh pack those are Sanyo UR18650FM 2500mAh cells.
Some have that information embossed on the wrapper some don't.
The cyan/light blueish insulation wrapper plus the 6 spoke pos cap gives it away.\

Wolf
If 18 X 650 = 2200+mAh then we have power! 
May all your Cells have an IR of 75mΩ or less Smile
Last count as of 8/7/2019
Total Number of Cells Recorded and processed                 6149
Total Cells required for PowIRwall                                   2856
Total Cells ≥2200mAh, ≥80%, ≥35mΩ, ≤75mΩ, ≥4.12V   2760
For Info Google Drive
Not your average Wolf       
            Cool
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#8
(08-28-2019, 10:33 AM)Lockon Wrote:
(08-28-2019, 10:13 AM)thunderheart Wrote:
(08-28-2019, 09:53 AM)Lockon Wrote: i did see a M25A 
Nothing else?
Ya thats from the 2 cell i have now
i will check the remain 4 cell once i am home
The other cell i check also the same

(08-28-2019, 12:05 PM)Wolf Wrote: Knowing Dell battery packs as well as I do esp. one of my favorites the 56Wh pack those are Sanyo UR18650FM 2500mAh cells.
Some have that information embossed on the wrapper some don't.
The cyan/light blueish insulation wrapper plus the 6 spoke pos cap gives it away.\

Wolf
Base on what you say i wonder could it be the Sanyo UR18650FK ones cause the  cyan insulation wrapper + the cap + the printout + the embossed almost the same


i have try my best in the pics
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#9
The M25A just means it was produced in the 25th week of 2008. I second the FMs, I've got a bunch like that.
Formerly known as Dallski
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#10
(08-28-2019, 02:38 PM)Generic Wrote: The M25A just means it was produced in the 25th week of 2008. I second the FMs, I've got a bunch like that.
Err sorry i dont quite understand. i am pretty much very new to all these
could you do a layman term breakdown
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