Sanyo NCR20650A 3100mAh (Red)

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Official specifications: Sanyo%20NCR20650A%203100mAh%20(Red)-info

This is one of the new formats for LiIon, this cell do not gain any extra capacity but can deliver a lot of current.

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Sanyo%20NCR20650A%203100mAh%20(Red)-Capacity

The discharge curves match perfectly and the capacity do not drop much at higher currents.

Sanyo%20NCR20650A%203100mAh%20(Red)-Temp-15.0

Sanyo%20NCR20650A%203100mAh%20(Red)-Temp-20.0

Sanyo%20NCR20650A%203100mAh%20(Red)-Temp-30.0

The cell gets hot at 30A, my log says 79C

Sanyo%20NCR20650A%203100mAh%20(Red)-CapacityTimeHours

Sanyo%20NCR20650A%203100mAh%20(Red)-CapacityTime

Sanyo%20NCR20650A%203100mAh%20(Red)-Energy

Sanyo%20NCR20650A%203100mAh%20(Red)-PowerLoadTime

Sanyo%20NCR20650A%203100mAh%20(Red)-TripCurrent

Sanyo%20NCR20650A%203100mAh%20(Red)-Charge



Conclusion

The cell is not a super cell, there ware limits to how much extra performance 2mm extra in diameter gets, but it is a very good high current cell (The next size up is 5mm longer and is better).

It is a very good cell, but do we really need this size (Check 21700)?



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
Compare to 26650 and other batteries