Test/review of Golisi IMR20700 3200mAh S32 (Black) 2018

HKJ

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[size=+3]Golisi IMR20700 3200mAh S32 (Black) 2018[/size]

DSC_9286.jpg


Official specifications:
  • Size: 20 x 70mm
  • Model: 20700
  • Capacity: 3200mAh
  • Constant Current: 30A
  • Nominal Voltage: 3.7V
  • Charging cut-off voltage: 4.20±0.05V
  • Cycle times: >800
  • Charging Time: 2.5H(with Golisi Charger)
  • Operate temperature: Charging(0-45?), Discharging(-20-60?)
  • Storage Temperature: Room temperature, dry place

Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-info.png


This battery is a high current one and is of the never sizes.

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Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-Capacity.png


The two batteries do not match completely, the capacity is nearly constant at any load.

Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-Temp-20.0.png


Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-Temp-30.0.png


At 30A I had to stop early due to temperature.

Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-CapacityTimeHours.png


Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-CapacityTime.png


Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-Energy.png


Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-PowerLoadTime.png


Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-TripCurrent.png


Golisi%20IMR20700%203200mAh%20S32%20(Black)%202018-Charge.png




[size=+3]Conclusion[/size]

This battery looks like a fairly good high current cell.



[size=+3]Notes and links[/size]

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 26650 and other batteries
 

bwDraco

Newly Enlightened
Joined
Dec 28, 2012
Messages
101
Location
New York
Looks like yet another Panasonic NCR20700A cell. Great performers as expected, though the cell getting hot at 30A discharge is a bit concerning.

Regardless, it's remarkable just how far battery technology has come...

Draco
 
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