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KeepPower IMR 18650 3500mAh 3.7V high drain 20A flattop

NOVINKA
Cena 16.90
Cena bez DPH 14.08
DPH 20.00 %
Záručná doba 24 mesiacov
Výrobca Keeppower Technology
Kód produktu ACUKPIMR18650
Dostupnosť na sklade
KS

KeepPower IMR 18650 3500mAh 3.7V high drain 20A flattop nechránený

 

KeepPower IMR18650 3500mAh, 3.7V 20A Li-ion  nabíjací akumulátor s vysokou kvalitou, dlhou životnosťou a vysokou stabilitou. 

,

Bunka KP IMR18650
Kapacita 3500mAh
Min. Kapacita 3400mAh
Menovité napätie 3.6V / 3.7V
Nabíjacie napätie 4.2V ± 0,05
Zvyškové napätie 2.5V
Pozitívny pól vyvýšený
Max. Vybíjací prúd (pulzná asi 10 sek.) 20A
Max. Vybíjací prúd (nepretržité napájanie) 10A
Chémia LiMnCo
Ochrana obvod PCB nechránený
Metóda nabíjania CC-CV
Priemer 18,45mm ± 0,2
Výška 65,10mm ± 0,2
Hmotnosť 48 g ± 1

 

 

Test of Keeppower IMR18650 3500mAh (Black) 2015Keeppower IMR18650 3500mAh (Black) 2015

DSC_1133

Official specifications:
  • Capacity min.: 3400mAh
  • Capacity typ.: 3500mAh
  • Nominal voltage: 3.70V
  • Charge voltage: 4.20+/-0.05V
  • Standard discharge cut-off voltage: 2.50V
  • Standard charge current: 1000mA
  • Charge termination current: 50mA
  • Standard discharge current: 3400mA
  • Max. continuous discharge current: 10A
  • Max. pulse discharge current: 20A

Keeppower%20IMR18650%203500mAh%20(Black)%202015-info

This is a high current, high capacity and unprotected cell (Keeppower also has a protected 3500mA cell)

DSC_1131 DSC_1132

DSC_1134 DSC_1135

DSC_1136
DSC_1137

Keeppower%20IMR18650%203500mAh%20(Black)%202015-Capacity

There is perfect tracking between the two cells.
My result is below rated capacity, some of the reason is probably because I terminate charge a bit early (100mA instead of 50mA) and do not discharge to 2.5 volt, only to 2.8 volt.

Keeppower%20IMR18650%203500mAh%20(Black)%202015-CapacityTimeHours

Keeppower%20IMR18650%203500mAh%20(Black)%202015-CapacityTime

Keeppower%20IMR18650%203500mAh%20(Black)%202015-Energy

Keeppower%20IMR18650%203500mAh%20(Black)%202015-PowerLoadTime

Keeppower%20IMR18650%203500mAh%20(Black)%202015-TripCurrent

Keeppower%20IMR18650%203500mAh%20(Black)%202015-Charge



Conclusion

This cell is designed for higher loads, but it has capacity enough to be a resonable cell at lower loads also.

This is a very good cell.



Notes and links

The batteries was supplied by Keeppower 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
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