Test/Review of Imren IMR18650 3000mAh (Purple)

Batteries and Chargers Rechargeable Batteries
1

Imren IMR18650 3000mAh (Purple)



Official specifications:

  • Model: 18650
  • Capacity: 2500mAh
  • Nominal voltage: 3.7V
  • Weight: 50g
  • Length :65.11mm
  • Diameter: 18.19mm
  • Material: Li-Mn
  • Max. Discharge rate: 40A
  • Continuous Discharge rate:32A




A high current and high capacity cell from Imren.











The curves looks very good up to 15A, one cell do also have a good 20A curve.
At 30A the cell has trouble and needs to heat up, before it can deliver the current, the output voltage is also rather low.
The white and yellow line may be a problem with my test station (bad connection).















Conclusion

These cells has good performance up to 15A and can handle 20A.



Notes and links

The battery was supplied by Imren for a review.
Because Imren changed the wrapper after they shipped the batteries to me, the above pictures are taken by Imren.

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 for the review HKJ. I have to ask. Do you get paid to do reviews? It’s okai if you don’t wanna answer if it’s a personap question. I’m juz really curious :stuck_out_tongue:

3

No, except I keep the products (And sometimes I buy the products myself).

4

Ahh thank you! :slight_smile: Thanks for fulfilling my curiosity! Hehe

5

Was this test done on your new equipment with 4 point measurements?

I’m wondering why there is noise in the 20A and 30A traces?

6

No, I do still have a couple of cells done before the upgrade. If the review is missing the temperature charts, it is from the old setup.

7

Okay. Thanks for the clarification. I was going to be surprised if the new setup gave these results. Great work as always. I don’t know what I’ll do when you no longer put out these awesome reviews. I check your site at least once a day. Greatest part is you never know what’s next…