Test/review of FST 21700 4500mAh (Pink)

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HKJ
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Test/review of FST 21700 4500mAh (Pink)

FST 21700 4500mAh (Pink)
DSC_1085
Official specifications:


  • Rated capacity: 4500mAh
  • Minimum capacity: 4400mAh
  • Nominal voltage: 3.6V
  • Standard charge current: 2250mA
  • Maximum charge current: 4400mA
  • Charge cut-off current: 90mA
  • Standard discharge current: 2250mA
  • Maximum discharge current: 13.5A (3C) below 35°C ambient
  • Discharge cut-off voltage: 2.75V
  • Cycle life: 600 cycles to 80%

FST%2021700%204500mAh%20(Pink)-info
This is a high capacity 21700 cell.
DSC_1084
DSC_1086 DSC_1087
DSC_1088
DSC_1089
FST%2021700%204500mAh%20(Pink)-Capacity
The two cells match nicely and it is obvious they are high capacity, not high current (The do already get hot at 15A).
FST%2021700%204500mAh%20(Pink)-Temp-10.0
FST%2021700%204500mAh%20(Pink)-Temp-15.0
FST%2021700%204500mAh%20(Pink)-Temp-20.0
FST%2021700%204500mAh%20(Pink)-CapacityTimeHours
FST%2021700%204500mAh%20(Pink)-CapacityTime
FST%2021700%204500mAh%20(Pink)-Energy
FST%2021700%204500mAh%20(Pink)-PowerLoadTime
FST%2021700%204500mAh%20(Pink)-TripCurrent
FST%2021700%204500mAh%20(Pink)-Charge
Discharge-FST%2021700%204500mAh%20%28Pink%29-pulse-1.0%2010%2010-IR
Conclusion
The two batteries match nicely and have the rated capacity. The performance of the battery is good.
Notes and links
The batteries was supplied by Vapcell 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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

vapcell Dennis
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Thanks for the test Thumbs Up

Blggg
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Is this the original cell of the recently released Vapcell G45?

HydrAxx
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Blggg wrote:
Is this the original cell of the recently released Vapcell G45?

yes, it is. The FST 21700-4500EA is his real model name.

Can a single flapping of a butterfly's wings trigger a tornado at the other end of the world?

Blggg
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Thanks for confirming.

Superstocker
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Thanks HKJ! These do look quite good.