Test/Review of Xiaomi ZI5 1800mAh (White or Black)

Xiaomi ZI5 1800mAh (White or Black)







Official specifications:

  • Brand: XiaoMi

  • Battery Type: NiMH

  • Rechargeable: Yes

  • Protected: No

  • Capacity (mAh): 1900mAh

  • Practical Capacity (mAh): 1800mAh

  • Voltage(V): 1.2V

  • Charge Current: 550mA

  • Max. Discharge Current: 3600mA

  • Charging Time (h): 4h

  • Mercury Free: Yes




Maximum temperature raise at different discharge currents: 1A:+1,1°C, 2A:+3,1°C, 3A:+5,4°C, 5A:+10,7°C, 7A:+15,7°C, 10A:+2,8°C
This is a Chinese brand of NiMH, a pack contains both white and black cells with the same specifications.











The discharge curves for the two cells tracks very nicely. The capacity varies significantly with load.















Conclusion

The cells looks good, they easily deliver the rated capacity, but has a problem at very high current.



Notes and links

The batteries was supplied by Gearbest for a review.

How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium

Some store claims “manufactured by famous japan company”… (or similar)

Are they rebadged eneloops??? The venting holes seems similar…

These are made in China Wuxi. Not Japan FDK Eneloop.

I don’t think so. None of my eneloops have venting holes. And I think the eneloops tested better at high discharge rates.

Ok… Too good to be true.

Eneloop is the way to go

Panasonic


Xiaomi ZMI ZI5 1800mAh (White or Black)



While comparing between
GP ReCyko+ 2 AA 2000mAh ard SGD $4.50 ea,
ZI5 1800mAh ard SGD $2.50 ea, and
Eneloop 2000 mAh Made in Japan White SGD $5 ea.

Which is more worth it?

While comparing, I came across this Panasonic rechargeable battery from the same factory as ZI5.
Is ZI5 consider a made in china Eneloop? or just ‘Panasonic’?

If you have the above 3 choices, what will you get?

These are Low-Self-Discharge NiMh right?

Yes, GP ReCyko+ Manufacturer claimed 1,000 times.
ZMI ZI5 1,500 times, 1 year later 80%
Panasonic 1,500 times, 1 yr later 80%
Eneloop 2,100 times, 2 yrs later 90%