[HKJ]

Efest IMR26650 3000mAh (Red) 2014



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: < 0.5%
• Temperature range: Discharge: -20~+60 ºC, Charge: 0~45 ºC

This battery is rated as a high current type.










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.















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