Test/Review of Efest IMR26650 3000mAh (Red) 2014

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HKJ
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Test/Review of Efest IMR26650 3000mAh (Red) 2014
Efest IMR26650 3000mAh (Red) 2014

DSC_4625

Official specifications:
  • Weight: 95g
  • Length: 66.67 mm
  • Diamter: 26.21mm
  • Top: flat top
  • Bottom:non-procted
  • Typical Capacity: 3000mAh
  • Min capacity: 3000mAh
  • Maximum discharging current: 15A
  • Maximum charging current: 6.5 A
  • Maximum pulse discharging current: 60A
  • Resistance: 13±2 mOhm
  • Battery WH: 125WH\Kg
  • Discharge cut-off voltage: 2.5V
  • Voltage: 3.8V
  • Full Charge voltage: 4.2V
  • Monthly Self-discharge rate: Temperature range: Discharge: -20~+60 ºC, Charge: 0~45 ºC

Efest%20IMR26650%203000mAh%20(Red)%202014-info

This battery is rated as a high current type.

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DSC_4626 DSC_4627

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Efest%20IMR26650%203000mAh%20(Red)%202014-Capacity

The batteries can handle up to 20A, but does heat up at 15A and 20A. It is nice with nearly constant capacity at any load.
The 15A rating is fine for it.

Efest%20IMR26650%203000mAh%20(Red)%202014-CapacityTimeHours

Efest%20IMR26650%203000mAh%20(Red)%202014-CapacityTime

Efest%20IMR26650%203000mAh%20(Red)%202014-Energy

Efest%20IMR26650%203000mAh%20(Red)%202014-PowerLoadTime

Efest%20IMR26650%203000mAh%20(Red)%202014-TripCurrent

Efest%20IMR26650%203000mAh%20(Red)%202014-Charge



Conclusion

These batteries has good performance up to 10A, but it is possible to find 26650 with lower capacity, but considerable better high current capability.
It will rate it as an acceptable battery.



Notes and links

The battery was supplied by Efest 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

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

RaceR86
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Looks like a very good battery at 5A, like the KeepPower 26650.

At 5A performance is very close/similar to the Sony high drain battery, but this has got better capacity..

Then we are back to the usual question. Anyone know where to buy this exact battery at a good/ low price? (preferably free international shippping)

On a sidenote, HKJ, will you be looking into the Efest purple batteries?

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http://budgetlightforum.com/node/19342

djozz
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Thanks for the review, nice capacity this battery has. I bought one these three months ago, will that be this tested battery or is there a new version?

HKJ
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RaceR86 wrote:
On a sidenote, HKJ, will you be looking into the Efest purple batteries?

I do not have any in queue at the current time.

If Efest ships some to me, I will not have time to post any reviews before April.

djozz wrote:
I bought one these three months ago, will that be this tested battery or is there a new version?

I cannot answer that, I do not know how fast Efest updates their batteries.

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

djozz
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ok, thanks. I'm happy with it anyway Smile

sesgum
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Thanks for the detailed review and your hard work HKJ!