Test/review of Enerpower 18650 3.2V 1100mAh (Blue)

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HKJ
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Test/review of Enerpower 18650 3.2V 1100mAh (Blue)

Enerpower 18650 3.2V 1100mAh (Blue)
DSC_3560
Official specifications:


  • Standard capacity: 1100mAh
  • Capacity range: 1050 ~ 1200mAh
  • Standard voltage: 3.2V
  • Internal resistance (1kHz): <=18mOhm
  • Maximum charge current: 5.5A
  • Discharge cut-off voltage: 2.5V
  • Fast discharge current: 11A
  • Maximum continuous discharge current: 33A
  • Pulse discharge current: 40A for 10seconds
  • Cycle characteristic: 500cycles (100% DOD), 1000cycles (80% DOD), 3000cycles (50% DOD)
  • Working temperature: Charge 0°C ~ 55°C, Discharge -20°C ~ 60°C
  • Storage temperature: 3 months: -20°C ~ 45°C

Enerpower%2018650%203.2V%201100mAh%20(Blue)-info
This is high current LiFePO4 batteries.
DSC_3527
DSC_3561 DSC_3562
DSC_3563
DSC_3564
Enerpower%2018650%203.2V%201100mAh%20(Blue)-Capacity
The batteries tracks nicely. The voltage is lower than normal LiIon, but it is stable during most of the discharge.
Enerpower%2018650%203.2V%201100mAh%20(Blue)-Temp-15.0
Enerpower%2018650%203.2V%201100mAh%20(Blue)-Temp-20.0
Enerpower%2018650%203.2V%201100mAh%20(Blue)-Temp-30.0
Enerpower%2018650%203.2V%201100mAh%20(Blue)-CapacityTimeHours
Enerpower%2018650%203.2V%201100mAh%20(Blue)-CapacityTime
Enerpower%2018650%203.2V%201100mAh%20(Blue)-Energy
Enerpower%2018650%203.2V%201100mAh%20(Blue)-PowerLoadTime
Enerpower%2018650%203.2V%201100mAh%20(Blue)-TripCurrent
Enerpower%2018650%203.2V%201100mAh%20(Blue)-Charge
Conclusion
High current at fairly stable voltage, but not much capacity.
This is a good LiFePO4 high current cell.
Notes and links
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

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

chadvone
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That discharge curve reminds me of Ni-Cads.

Jerommel
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Thanks for the test.
Very low capacity, unfortunately..
I think LiFePo may have a bright future for flashlights, since the Vf of LEDs gets lower.
Otherwise you can put them in series..

How about testing these:

http://www.aliexpress.com/item/4PCS-VariCore-Brand-3-2V-32700-6500mAh-Li...

Interesting for Maglite D cell lights.
Enough capacity and current, according to the claimed specs.
A lot of these or similar for sale on AE now.