Test/review of Golisi IMR26650 4300mAh (Gold)

Batteries and Chargers Rechargeable Batteries
1

Golisi IMR26650 4300mAh (Gold)







Official specifications:

  • Nominal capacity: 4300mAh

  • Constant discharging: 35A

  • Nominal voltage: 3.7V

  • Discharging cut-off voltage: 2.75V

  • Charging cut-off voltage: 4.20V +/-0.05V

  • Internal resistance: 30mOhm

  • Standard charging current: cc/cv <=2A

  • Operating temperature: Charging: 0°C ~ 45°C, Discharging: –20°C ~ 60°C




This is a high current 26650 cell with moderate capacity.










The batteries easily handles up to 20A without any significant drop in capacity. The curves tracks fairly well, with only a minor capacity difference.
The 15A discharge curve for the A cell is missing, my equipment had a fault during the charging after the 10A test.







The battery gets hot during a 30A discharge, but not too hot.















Conclusion

A 30A discharge current is usual problematic for a 26650 cell, but not for here, the cell can handle it.
This is definitly a high current cell!



Notes and links

The batteries was supplied by Golisi 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

Thank you for testing these HKJ. Those results sure look good for high current use.

3

Thanks HKJ once again. Nice looking cell.
Any idea where to purchase it?

4

Good looking solution for high current needs, around 7amps or more. Otherwise Shockli 5500mAh 26650’s for long run time.
Thank HKJ.

5

Nice review HKJ, Thanks! :smiley:

6

individuals: Recommend gearbest
bulk purchasing: me (info@golisi.com)
:smiley:

7

Nice cell.

Thank you one more time HKJ.
Thank you.

Golisi ……
Keep up the good job ….

8

Welcome to the new kid on the block!

9

what is the price IMR26650 4300mAh (Gold) and 18650 30000 mah?

10

Do they come in button top ? If so I’d like to get some .:wink:

11

This cell has no protection pcb, right (at the Banggood website they advertise this as a protected cell)?

12

You are right, it probably does not have a protection PCB, but it is not totally unprotected.
HKJ has written a detailed explanation about protected batteries, follow the link to:
“How is a protected LiIon battery constructed” in the OP.

13

Thanks! :+1:

14

Is it possible to purchase real Golisi-4300 on Ali-express or are there already fakes of this “gold”? :question:

15

Dear HKJ,
have you ever tested cells from torn-down Tesla batteries?

I remember Elon Musk once said that Panasonic cells used in car batteries are different from those available on the consumer market.

May be, your test will give an idea which of known cells they might be similar to? (like, Ikea Ladda/Fujitsu 2450 cells)

16

No, I have not tested Tesla batteries.

17

Hope some day you will test them and we will know what they are like. Most probably, some high-drain type like PF.

18

I am not really interested in testing used batteries (Except when sold as new) and getting new Tesla batteries is probably not possible.

19

I think “like new” with minimum mileage (or cycles) is possible.

20

I am not talking about used or rewrapped cells, I mean genuine Tesla cells that may have different chemistry. I am not talking about worn-out batteries.