Test/Review of Aosibo IMR18650 2600mAh (Yellow)

Batteries and Chargers Rechargeable Batteries
1

Aosibo IMR18650 2600mAh (Yellow)



Official specifications:

  • Nominal Capacity: 2600mAh
  • Nominal Voltage: 3.70V
  • Charging Voltage: 4.2V
  • Discharge Cut-off Voltage: 2.5V
  • Max. cont. discharging current: 30A
  • Cell Dimension: Diameter 18.3±0.2 mm, Height 65.0±0.2 mm
  • Cell Weight (Approx.): 46g
  • Initial internal impedance Max, at 1000Hz.: <=10 mOhm (Charged)
  • Charging Current (CC/CV): Rapid charge 2CA×2.5hrs, Standard charge 0.5 CA×4hrs
  • Operating Temperature Charge: 0°C ~ 60C°
  • Operating Temperature Discharge: -20°C ~ 75°C
  • Storage Temperature: -20°C ~ 45°C




A high current battery with fairly high capacity.








The battery is marked with two currents 30A is the continuous discharger current and 60A being a unspecific pulse discharge.



Fairly good tracking between the two cells and capacity hold fairly well at 30A. As usual the reason for slightly more capacity at very high currents is heat. The high current heats the cell and chemistry works better when warm.















Conclusion

This battery has very good performance and capacity at high currents.



Notes and links

The batteries was supplied by Aosibo 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
Compare to 18650 and other batteries

2

Thanks HKJ for the review! Looks like a great battery.

3

This cell is impressive. It handily beats HKJ’s HE2 and 25R samples in capacity, but it seems to have more initial voltage sag under high current. I wonder what cell they are using.

4

Is the HE4 under the label of Aosibo :quest:

The positive pole is however like the LG Chem and say it’s better at a high temperature from the HE2…… :quest:

Thanks HKJ for your time.

5

I cannot tell you. The datasheet for the cell just has the Aosibo name on it.

6

Thank’s HKJ

7

Thanks for the review. Never saw them around.

8

Same. Where to buy them?

9

I’m pretty sure the cell is a Sony VTC5 IMR 2600mAh.

The Keeppower IMR 2600mAh (which uses Sony VTC5 cells) tracks very closely with the Aosibo, both at very low as well as high currents.

10

It is not Sony battery cell, Sony has discontinued.
Here is pic of our battery cell, pls check it.

11

If you need it, pls contact me.

12

Contact me, Dear !

13

Here’s your photo:

Do you know what brand cell it is? I don’t see any identifiable markings on it.

14

It is our own brand cell. We dont make any lable on it for this moment, but it is made in China.

15

I see, thank you.

Is there a supplier you have for those who are interested in purchasing these cells?

16

May I know your location?

17

I’m in the United States.

I’m sure international members will be interested as well.

18

Dear, Contact ways of American retailer and wholesaler has been PM you. :smiley:

19

Thank you for the PM.

20

You’re welcome. Hope you will be satisfied with our battery.