Test/Review of Eizfan IMR18650 2600mAh (Gold)

Batteries and Chargers Rechargeable Batteries
1

Eizfan IMR18650 2600mAh (Gold)



Official specifications:

  • Capacity: 2600mAh
  • Nominal Voltage: 3.70V
  • Standard Charge: Constant current 1250mA, end current(Cut off) 50mA
  • Fast Charge: Constant current 4000mA, end current(Cut off) 100mA
  • Max. Charge Voltage: 4.20V
  • Max. Charge Current: 4000mA
  • Standard Discharge: 500mA, end voltage(Cut off): 2.5V
  • Fast Discharge: Constant current 10000mA, 30000mA, end voltage(Cut off) 2.5V
  • Max. Discharge Current for continuous discharge: 25A
  • Max discharge: 30A
  • Weight: Max. 47.0G
  • Operating Temperature: Charge 0 ~ 50°C, discharge -20~ 75°C
  • Storage Temperature: 1 month -20 ~ 60°C, 3 months -20 ~45°C, 1 year -20 ~ 20°C
  • Dimension: (D)18.2 + 0.2/-0.3 mm, (H) 66.25 ± 0.2 mm




A high capacity and high current cell.










There is very good tracking between the two cells and the cell can deliver 30A, but it is best to keep the current lower.















Conclusion

Usual a battery with unspecified cell will not get better rating than acceptable, but there is no doubt it is a very good cell that is used here.



Notes and links

The batteries was supplied by Efan 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, if you had to guess based on performance characteristics, do you think you could hazard a guess at who makes the cell?

3

Not really, performance does not match the VTC5 from Sony and the LG and Samsung cells are only rated 2500mAh.

4

It tracks lower than the LG HE2 and Samsung 25R in terms of voltage under load. Capacity matches the 25R. I would guess that it is a 25R, but I wonder why the voltage under load is lower.