Test/review of Vapcell IFR26650 2600mAh (Red)

HKJ · 2019-06-04T15:42:04.000Z

Vapcell IFR26650 2600mAh (Red)

Official specifications:

Model: Vapcell IFR26650 2600mah 55A/75A
Size: 26.6*65.1mm
Nominal voltage: 3.20V
End-of-charge voltage: 3.60V
End-of-discharge Voltage: 2.0V
Typical Capacity: 2600mAh (0.2C discharge)
Min capacity: 2500mAh (0.2C discharge)
Weight: Max:90g
Internal resistance: Max:5mOhm AC 1kHz
Standard Charge: 2500mA,CCCV 100mA cut-off
Charging Time: 1.5hours(standard charge)
Quick Charge Current: 12000mA
Max Continuous Discharge Current: 55A
Max Discharge Current: 75A under 80°C

A large LiFePO4 cell that can handle very high current.

The two cells tracks nicely. My test only goes to 30A and the cell has no problems with that.

At 30A the cell do not get very warm.

Here I calculate the internal resistance by turning 1A on/off during a full discharge.

Conclusion

The cell looks good, it has the rated capacity, and can deliver a lot of current at a stable voltage, but as always with LiFePO4 the voltage and capacity is lower than regular LiIon.

Notes and links

The batteries was supplied by Vapcell for review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

vapcell_Dennis · 2019-06-05T04:16:12.000Z

Thanks HKJ very much.

The temperature rise of 30A discharge is very small, which means that it can discharge with larger current.

I want to make a comparison about A123 26650 M1B 2500mah and this vapcell battery, but I can’t find A123. Could you add it in?

Thanks

HKJ · 2019-06-05T06:22:10.000Z

vapcell Dennis:

The temperature rise of 30A discharge is very small, which means that it can discharge with larger current.

I want to make a comparison about A123 26650 M1B 2500mah and this vapcell battery, but I can’t find A123. Could you add it in?

I have the data, I will see when I can get it published.

vapcell_Dennis · 2019-06-06T01:25:42.000Z

HKJ:

vapcell Dennis:

The temperature rise of 30A discharge is very small, which means that it can discharge with larger current.

I want to make a comparison about A123 26650 M1B 2500mah and this vapcell battery, but I can’t find A123. Could you add it in?

I have the data, I will see when I can get it published.

Thanks

Barkuti · 2019-06-06T01:46:24.000Z

The ANR26650M1-B was reviewed by Henrik long ago, tested on his old station without fully independent cell voltage monitoring. I say this because of the July 2012 review date, not because I know it for sure so better wait for Henrik's word:

Both cells close in performance, but this newer one may have an edge.

:-)

vapcell_Dennis · 2019-06-13T02:25:24.000Z

Barkuti:

The ANR26650M1-B was reviewed by Henrik long ago, tested on his old station without fully independent cell voltage monitoring. I say this because of the July 2012 review date, not because I know it for sure so better wait for Henrik’s word:

Both cells close in performance, but this newer one may have an edge.

You are right :+1: ,can you get many M1b in your country?