Skip to main content

Panasonic NCR18650G - the mysterious 3600mAh battery's capacity test

Panasonic NCR18650G is a famous Li-ion cell which appeared in 2014 and very quickly disappeared. It had (and still has) the highest capacity rating in 18650 format.
Panasonic NCR18650G 3600mAh battery cell capacity test datasheet pdf

The battery was bought from my reliable supplier (Queen Battery) and tested with ZKETECH EBC-A20 and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A.

I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals

I've followed all the prescriptions of the IEC61960-2003 standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard charge current mentioned in its datasheet to charge end voltage. Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.0-24.5°C. To be sure in results i've done each test minimum twice (usually 3-4 times).


Panasonic NCR18650G

The cell is marked as E BV 8307The 8307 code means that the cell was produced on March 7 2018.
Panasonic NCR18650G 3600mAh battery cell capacity test datasheet pdf

I didn't find any datasheet of NCR18650G except this screenshot of a page from a Panasonic roadmap:
Panasonic NCR18650G 3600mAh battery cell capacity test datasheet pdf

I compared it to other Panasonic cells' datasheets and made up these specs for NCR18650G:
Rated capacity: 3400mAh at 20°C
Minimum capacity: 3450mAh at 25°C (should be used as 1C)
Typical capacity: 3550mAh at 25°C
Nominal voltage: 3.6V
Standard charge current: 1035mA (0.3C)
Charge end voltage: 4.2V
Charge cut-off current: 69mA (0.02C)
Discharge cut-off voltage: 2.5V
Maximum weight: 47.5g

The measured DC IR of fully charged cell at 3.45A was 38±1.5mΩ
My cell's weight was 46.39g
Panasonic NCR18650G 3600mAh battery cell capacity test datasheet pdf

Panasonic NCR18650G's capacity test results:
Panasonic NCR18650G 3600mAh battery cell capacity test datasheet pdf
At 0.2C / 0.69A NCR18650G's capacity was slightly higher than the 3550mAh declared and it's energy was almost 13Wh. At 5A discharge rate the capacity was a bit higher than 3350mAh and the energy - 11.2Wh. Most of the suppliers mention NCR18650G's max discharge current as 4.87A so i didn't go above 5A.

Compared to LG M36 and Samsung 36G (test), Panasonic NCR18650G looks better but i used 1.8A to charge the first two vs 1.04A in case of Panasonic.

Also the 0.3C standard charge current makes me think that NCR18650G would not have a great cycle life but it's just a suggestion.

Here is the video version of this review:
Panasonic NCR18650G 3600mAh battery cell capacity test datasheet pdf

Check out my YouTube channel for batteries, chargers and other stuff reviews.

Popular posts

Sony VTC6 - a 3000mAh/30A monster in 18650 size

Sony US18650VTC6 (or just VTC6) is a high drain 18650 size Li-ion cell which supports discharge rate up to 15A if no temperature control is used and up to 30A with 80°C temperature cut. The battery was bought from my reliable supplier ( Queen Battery ) and tested  with  ZKETECH EBC-A20  and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've  all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard charge current mentioned in its datasheet to charge end voltage. Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.0-24.5°C. To be sure in results i've done each test  minimum twice  (usually 3-4 times). Sony US18650VTC6 The  c ell is  marked a

Samsung 50E capacity test - 5000mAh or not?

Samsung INR21700-50E is a 21700 size cell which is being sold as 5000mAh one while in its official datasheet the capacity is mentioned as "Min. 4900mAh". I've tested it to find out it's real capacity. The battery was bought from my reliable supplier ( Queen Battery ) and tested  with  ZKETECH EBC-A20  and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've followed all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard charge current mentioned in its datasheet to charge end voltage. Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.0-24.5°C. To be sure in results i've done each test minimum twice (usually 3-4 times). S

3500mAh 18650 Li-ion cells' discharge capacity test (Sanyo NCR18650GA vs Panasonic NCR18650GA vs LG MJ1 vs Samsung INR18650-35E)

Hi guys! I’ve got four 3500mAh batteries from top manufacturers. I’ve tested and compared them. I think it’s interesting not only for me, but also for you, the guy who is reading this:) The cells were bought from Queen Battery , a Chinese supplier of genuine batteries, who specializes mainly on EV and eBike market. Queen Battery has a branch in Europe, but they also work with customers from Americas, Russia, etc… As always, I've tested with ZKETECH EBC-A20 and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A. I've followed all the prescriptions of the IEC61960-2003 standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard current mentioned in its datasheet to 4.2V (cut-off at 0.1A, which is the lowest supported by EBC-A20). Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 20-

Li-ion 21700: LG M50 5000mAh vs Samsung 48G 4800mAh discharge capacity test

Hi guys! I've tested two high capacity 21700 cells - LG M50 (5000mAh) and Samsung 48G (4800mAh). The latter i had already tested before and the re-testing of another cell showed almost no difference with previous test results. The M50 is a new cell which is being sold as 10A one, but in its datasheet the maximum discharge current is mentioned as 7.28A. Nevertheless i've also discharged it at 10A to look at it's behavior. The cells i've bought from Queen Battery . As always, I've tested with ZKETECH EBC-A20 and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A. I've used the v2.5 of my battery holder I've followed all the prescriptions of the IEC61960-2003 standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard current mentioned in its datasheet to charge end voltage (4.2V) (cut-off at 0.1A, which is th

Samsung 40T - high drain 21700 Li-ion battery's capacity test

Hi guys! I've tested the Samsung INR21700-40T (35A) at up to 20A discharge (limited by my equipment). The battery was bought from my reliable supplier ( Queen Battery ) and tested  with  ZKETECH EBC-A20  and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've followed all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle each battery was charged at standard charge current mentioned in its datasheet to charge end voltage. Before each discharging or charging i've held a 1-1.5hrs pause. The environment temperature was 23.5-24.5°C. To be sure in results i've done each test minimum twice (usually 3-4 times). Samsung INR21700-40T The c ell is marked as  INR21700-40T SAMSUNG SDI 2I15 which mean s that the production d

LG M50T Grade A high capacity 5000mAh 21700 cell's test

LG INR21700 M50T is a 5000mAh Li-ion cell of 21700 size (also known as 2170). LG M50T was previously known as M50 (without T) and even in the tentative version of the datasheet the model name was M50. More than a year ago i tested it (Grade B) and compared with Samsung 48G but then i was using v2.5 of my battery holder. This time i've tested a Grade A cell with the latest v3.0 holder. The battery was bought from  Queen Battery  which is  my reliable supplier of genuine cells  and tested  with  ZKETECH EBC-A20  and a self-made battery holder. It's a PC-connected battery tester supporting 4-wire measuring and discharging at up to 20A. I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals I've followed all the prescriptions of the  IEC61960-2003  standard concerning battery's capacity measurement. Before each discharging cycle the battery was charged at standard charge current mentioned in its datasheet to charge end volt