Ebat 20700 3000mAh E7-20P30 (Blue)
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Official specifications:
- Model: E7-20P30
- Normal voltage: 3.7V
- Normal capacity: 3000mah
- Charging voltage: 4.2V ± 0.5V
- Discharging cut-off voltage: 2.5V
- Discharge rate: 40A
- Rechargeable: Yes
- Size: 18±2mm Dia 70±1mm Length
- Cycle life: > 500 times
- Operation Temperature Range: Charge(0~45°C ) Discharge(-10~60°C )
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Ebat also have a battery in the new size 217100, capacity is not that high, but it can deliver lot of current.
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The discharge curves looks good with nice matching between the two cells and nearly constant capacity at any current.
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At 30A the battery gets warm, but not too warm, i.e. it can handle the current.
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Conclusion
This is a nice high current battery and the slightly large size compare to a 18650 can be seen on the improved performance.
This battery is mostly for people that needs well above 10A, for lower currents look at a 18650.
Notes and links
The batteries was supplied by EBat 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
Compare to 26650 and other batteries