HKJ
(HKJ)
October 12, 2017, 5:30pm
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
LumenHound
(LumenHound)
October 12, 2017, 10:44pm
2
Thank you for testing these HKJ. Those results sure look good for high current use.
Box
(Box)
October 13, 2017, 1:43am
3
Thanks HKJ once again. Nice looking cell.
Any idea where to purchase it?
MAD777
(MAD777)
October 14, 2017, 4:06am
4
Good looking solution for high current needs, around 7amps or more. Otherwise Shockli 5500mAh 26650’s for long run time.
Thank HKJ.
golisi
(golisi)
October 16, 2017, 4:35am
6
individuals: Recommend gearbest
bulk purchasing: me (info@golisi.com )
shadockan
(shadockan)
October 28, 2017, 6:46pm
7
Nice cell.
Thank you one more time HKJ.
Thank you.
Golisi ……
Keep up the good job ….
Welcome to the new kid on the block!
Nicolicous
(Nicolicous)
October 28, 2017, 10:00pm
9
what is the price IMR26650 4300mAh (Gold) and 18650 30000 mah?
maildroid
(maildroid)
October 29, 2017, 1:46am
10
Do they come in button top ? If so I’d like to get some .
Icarus
(Icarus)
October 29, 2018, 5:09pm
11
This cell has no protection pcb, right (at the Banggood website they advertise this as a protected cell)?
Henk4U2
October 29, 2018, 5:50pm
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.
volchyonok
(volchyonok)
November 2, 2018, 6:14pm
14
Is it possible to purchase real Golisi-4300 on Ali-express or are there already fakes of this “gold”? :question:
Dimking
(Dimking)
November 2, 2018, 6:43pm
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)
HKJ
(HKJ)
November 2, 2018, 6:47pm
16
Dimking:
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)
No, I have not tested Tesla batteries.
Dimking
(Dimking)
November 2, 2018, 6:54pm
17
Hope some day you will test them and we will know what they are like. Most probably, some high-drain type like PF.
HKJ
(HKJ)
November 2, 2018, 6:56pm
18
I am not really interested in testing used batteries (Except when sold as new) and getting new Tesla batteries is probably not possible.
Dimking
(Dimking)
November 2, 2018, 7:02pm
19
I think “like new” with minimum mileage (or cycles) is possible.
Dimking
(Dimking)
November 2, 2018, 7:20pm
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.