Test/review of Sanyo UR18650ZL2 2310mAh (Red)

HKJ · 2019-12-29T15:39:03.000Z

Sanyo UR18650ZL2 2310mAh (Red)

Testing is not done at the correct voltage, but at 4.2V

Official specifications:

Rated capacity: 2260mA
Capacity: 2310mAh
Nominal voltage: 3.6V
Discharge end voltage: 2.5V
Standard charging current: 1.155A
Charging voltage: 4.10V +/0.03V
Maximum discharge current: 10A
Cycle life: 1000 cycles to 2000mAh

This cell is a long life cell, this is done by reducing the charge voltage to 4.1V.

The two cells match nicely and can deliver the rated 10A current, due to the higher charge voltage it has more than rated capacity.

Conclusion

The cells looks fine and if charged correctly may have double or more lifetime compared to ordinary 4.2V LiIon batteries. This may also be the case with other LiIon batteries if they are only charged to 4.1V, but that is not part of their specifications.

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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

HydrAxx · 2020-01-01T11:45:05.000Z

Thanks for testing this cell model, HKJ! I have many samples of them they are excellent and very low priced, and look at the link below : there is another new cell of Sanyo (seem to be released at same time of UR1865ZL2) : the Sanyo “UR1865ZM2” (It’s a 2600mAh/5A cell).

QueenBattery

SANYO 18650 ZM2 UR18650ZM2 2600mah 5A battery cell 3.6V - QueenBattery

SANYO 18650 UR18650ZM2 HIGH POWER 8A 3C

Price: USD 0

his datasheet : http://queenbattery.com.cn/index.php?controller=attachment&id_attachment=114

Superstocker · 2020-01-01T12:20:18.000Z

Thanks HKJ!