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Panasonic NCR18650 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:NCR18650
Capacity:2900mAh Rated
Voltage:3.60V Nominal
Charging:4.20V Maximum
1925mA Standard
--- mA Maximum
Discharging:2.50V Cutoff
580mA Standard
5400mA Maximum
Description:Gray Cell Wrapper
White Insulator Ring
18650 Form Factor

Data References:
https://engineering.tamu.edu/media/42478...650ncr.pdf

Pictures:
#18650
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#2
is it normal if these batteries goes around 60 degres on charging? :/ is it safe? or all six bateries are bad?
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#3
(11-02-2018, 04:57 PM)xenixas Wrote: is it normal if these batteries goes around 60 degres on charging? :/ is it safe? or all six bateries are bad?

Assuming that's 60C and you're charging at 1A, that's bad and I would discard those cells. I capacity test mine at 1A and they just get normal hand warm, nowhere near 60C. Maybe 25-30C if I had to guess...
LEDSchlucker likes this post
#18650
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#4
A new wrapper style. From a med pack built in 2017.
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#5
(11-02-2018, 04:57 PM)xenixas Wrote: is it normal if these batteries goes around 60 degres on charging? :/ is it safe? or all six bateries are bad?

I'm currently charging 4 of these at 1A (2 hours into the charging, so the temperature should be stable), my IR temperature gun tells me all the cells are between 44 and 46 degrees Celsius.
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