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Panasonic NCR18650B Cell Specifications
#1
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:Panasonic
Model:NCR18650B
Capacity:3200mAh Rated
Voltage:3.60V Nominal
Charging:4.20V Maximum
1625mA Standard
--- mA Maximum
Discharging:2.50V Cutoff
640mA Standard
6400mA Maximum
Description:Green (Light) Cell Wrapper
White Insulator Ring
18650 Form Factor

Data References:
https://na.industrial.panasonic.com/site...18650b.pdf

Pictures:
BRAND NEW: LiFePO4 26650 Cells! Starting at $2.50 each!!
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#2
Some say, these are those inside Tesla's power packs. is it true?
Aiming for -> 48V 14s100p | 200Ah | 10KWh  | 1.5Kw Solar | 10KW inverter (2X 5KW tandem setup) | 
Check my progress: https://www.youtube.com/channel/UCXfC57i...iL62J4YLPg
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#3
Tesla uses 2170's IIRC so not quite the same. I'm guessing it's close but not close enough to warrant going 2170 over 18650.
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#4
My zanflare is testing several these at nearly 3500mah...underrated or malfunctioning tester?
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#5
(07-27-2018, 03:18 AM)xxlawman87xx Wrote: My zanflare is testing several these at nearly 3500mah...underrated or malfunctioning tester?

Probably underrated. The spec sheet says rated at 3200mAh typical is 3350mah, and "typical" means there are some above it.
BRAND NEW: LiFePO4 26650 Cells! Starting at $2.50 each!!
^ Use coupon code "powerwalls" on checkout for a 10% discount
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#6
(01-16-2018, 04:48 PM)Mario Dinis Wrote: Some say, these are those inside Tesla's power packs. is it true?

they do use panasonic brand.

(08-03-2018, 11:13 AM)mike Wrote:
(07-27-2018, 03:18 AM)xxlawman87xx Wrote: My zanflare is testing several these at nearly 3500mah...underrated or malfunctioning tester?

Probably underrated. The spec sheet says rated at 3200mAh typical is 3350mah, and "typical" means there are some above it.

Aren't they supposed to be rated at 3400mah?..
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#7
Zanflair is the problem. 8 to 11 percent inflated results.

Please see my test of Zanflair, Opus, and LiitoKala on Brand new Cells.
https://secondlifestorage.com/t-Zanflair...Kala-Tests

Wolf
If 18 X 650 = 2200+mAh then we have power! 
May all your Cells have an IR of 60mΩ or below Smile
Last count as of 2/16/2019
Total Number of Cells           2290
Cells  >80% of Capacity        1555
Cells <79% of Capacity         713
Cells >2200mAh & ≥ 80%     1129
Google Drive for info https://drive.google.com/drive/folders/1...sp=sharing
Not your average Wolf       
            Cool



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#8
Hi all I have tested near 900 hundred of these using liitokala and get a mix 3000 up to 3500mah. I would say that the majority is in the 3200 range. But as these are second hand any thing under 3000mah has been heavily used.

Karl
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#9
(12-18-2018, 06:18 AM)KBoffGrid Wrote: Hi all I have tested near 900 hundred of these using liitokala and get a mix 3000 up to 3500mah. I would say that the majority is in the 3200 range. But as these are second hand any thing under 3000mah has been heavily used.

Karl

The LiitoKala is one of the more accurate testers out there and I would trust your experience with these cells.
It would be neat to maybe get an IR reading of some of the cells below 3000mAh from the LiitoKala and maybe a couple of the 3500mAh and 3200mAh.
If you happen to have a little time.

See my tester evaluation https://secondlifestorage.com/t-LiitoKal...rs-Testers
Thanks
Wolf
If 18 X 650 = 2200+mAh then we have power! 
May all your Cells have an IR of 60mΩ or below Smile
Last count as of 2/16/2019
Total Number of Cells           2290
Cells  >80% of Capacity        1555
Cells <79% of Capacity         713
Cells >2200mAh & ≥ 80%     1129
Google Drive for info https://drive.google.com/drive/folders/1...sp=sharing
Not your average Wolf       
            Cool



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