Panasonic NCR18650BD is a mid-drain high capacity Li-ion cell in traditional 18650 format. It's rated at 3180mAh and supports discharging at up to 10A.
Tests were done using ZKETECH EBC-A20, which supports up to 20A discharge, 4-wire measurement and is PC-connected.
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 current mentioned in its datasheet to charge end voltage (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 23.5-24.5°C. To be sure in results i've done each test minimum twice (usually 3-4 times). Battery was bought from Queen Battery.
Panasonic NCR18650BD
My cell has the following marking: C CV 7321.
Specifications from Panasonic NCR18650BD datasheet (pdf):
Rated capacity: 2980mAh at 20°C
Minimum capacity: 3030mAh at 25°C
Typical capacity: 3180mAh at 25°C
Nominal voltage: 3.6V
Standard charge current: 0.909A (0.3C)
Max charge current: 1.5A
Charge end voltage: 4.20V
Charge cut-off current: 60.6mA (0.02C) (100mA used)
Max continuous discharge current: 10A
Discharge cut-off voltage: 2.5V
AC impedance at 1KHz: ≤35mΩ
Max weight: 49.5g
The measured weight of my cell is 46.66g. Measured DCIR at 3030mAh was 23.8±1.0mΩ (in fully charged condition).
Panasonic NCR18650BD capacity test results:
At 0.2C or 0.61A NCR18650BD's capacity was a bit higher than declared and it didn't go below 3020mAh all the way up to 10A. The curves look excellent even at 10A. Just a great cell, nothing to add.
Here is the video version of this review
Check out my YouTube channel for batteries, chargers and other stuff reviews.
![Panasonic NCR18650BD Li-ion 18650 cell battery discharge capacity test Panasonic NCR18650BD Li-ion 18650 cell battery discharge capacity test](https://ic.pics.livejournal.com/thunderheartrev/71546108/249059/249059_original.jpg)
Tests were done using ZKETECH EBC-A20, which supports up to 20A discharge, 4-wire measurement and is PC-connected.
![](https://ic.pics.livejournal.com/thunderheartrev/71546108/87638/87638_original.jpg)
I've used version 3.0 of my battery holder based on 0.5mm thick pure copper terminals
![](https://ic.pics.livejournal.com/thunderheartrev/71546108/210421/210421_original.jpg)
![](https://ic.pics.livejournal.com/thunderheartrev/71546108/209931/209931_original.jpg)
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 the lowest supported by EBC-A20). 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). Battery was bought from Queen Battery.
Panasonic NCR18650BD
My cell has the following marking: C CV 7321.
![Panasonic NCR18650BD Li-ion 18650 cell battery discharge capacity test Panasonic NCR18650BD Li-ion 18650 cell battery discharge capacity test](https://ic.pics.livejournal.com/thunderheartrev/71546108/248528/248528_original.jpg)
Specifications from Panasonic NCR18650BD datasheet (pdf):
Rated capacity: 2980mAh at 20°C
Minimum capacity: 3030mAh at 25°C
Typical capacity: 3180mAh at 25°C
Nominal voltage: 3.6V
Standard charge current: 0.909A (0.3C)
Max charge current: 1.5A
Charge end voltage: 4.20V
Charge cut-off current: 60.6mA (0.02C) (100mA used)
Max continuous discharge current: 10A
Discharge cut-off voltage: 2.5V
AC impedance at 1KHz: ≤35mΩ
Max weight: 49.5g
The measured weight of my cell is 46.66g. Measured DCIR at 3030mAh was 23.8±1.0mΩ (in fully charged condition).
![Panasonic NCR18650BD Li-ion 18650 cell battery discharge capacity test Panasonic NCR18650BD Li-ion 18650 cell battery discharge capacity test](https://ic.pics.livejournal.com/thunderheartrev/71546108/249496/249496_original.jpg)
Panasonic NCR18650BD capacity test results:
![Panasonic NCR18650BD Li-ion 18650 cell battery discharge capacity test Panasonic NCR18650BD Li-ion 18650 cell battery discharge capacity test](https://ic.pics.livejournal.com/thunderheartrev/71546108/248778/248778_original.png)
Here is the video version of this review
Check out my YouTube channel for batteries, chargers and other stuff reviews.