Sanyo/Panasonic NCR18650BL 3350mAh (Red)

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Official specifications:
Sanyo%20NCR18650BL%203350mAh%20(Red)-info

A high capacity cell from Sanyo or is it Panasonic (Panasonic owns Sanyo). The naming match the Panasonic naming (NCR18650B for 3400mAh), but the wrapper is Sanyo style with Sanyo name on it (If you can find it, the letters are small and not very visible).

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Sanyo%20NCR18650BL%203350mAh%20(Red)-Capacity

Discharge curves looks good, they track nicely.
In this test I do overload the cell, it is only rated for 7A.

Sanyo%20NCR18650BL%203350mAh%20(Red)-CapacityTimeHours

Sanyo%20NCR18650BL%203350mAh%20(Red)-CapacityTime

Sanyo%20NCR18650BL%203350mAh%20(Red)-Energy

Sanyo%20NCR18650BL%203350mAh%20(Red)-PowerLoadTime

Sanyo%20NCR18650BL%203350mAh%20(Red)-TripCurrent

Sanyo%20NCR18650BL%203350mAh%20(Red)-Charge



Conclusion

It looks like a very good cell.



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