Unknown 17355 3.0V 1000mAh (Green)




Official specifications:

• Capacity: 1000mAh
• Voltage: 3.0V
• Rechargeable Times: Up to 500 times
• Size: 33.5mm(Length ) x 17mm(Diameter )

This is IFR batteries, i.e. LiFePo4 with a maximum charge voltage of 3.6 volt. The actual capacity is much lower than specified.










The two tested batteries has very different capacity.













The charge curve is a typical LiFePo4 charge curve (Voltage drops from 3.6 to 3.4 volt when charge is terminated).



Conclusion

These batteries are fairly cheap, but that does not excuse the huge difference in capacity or the way overstated capacity, I will call these batteries bad.


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
CR123A and rechargeable substitutes