Apexium INR20700 3000mAh (Blue)



Official specifications:

• Typical capacity: 3000mAh
• Minimum capacity: 2800mAh
• Rated discharge capacity: 2800mAh
• Nominal voltage: 3.6V
• Shipping voltage: >=3.45V
• End of charge voltage: 4.2V +/-0.05V
• End of discharge voltage: 2.5V
• Maximum charge current: 3.0A with 0.05A cut-off
• Rated discharge current: 0.56A
• Maximum discharge current: 30A (35A with 80°C cut-off).
• Cycle life: 500 cycles to 80% with 30A discharge
• Cycle life: >=1500mAh after 250 cycles at 25A discharge and 0.52A charge.
• Operating temperature: Charging: 0°C ~ 60°C (recommend <50°C), Discharging: -40°C ~ 60°C
• Storage temperature: 1 month: 0°C ~ 60°C, 3 months: 0°C ~ 45°C, 1.5 year: 23°C

This is a high current cell and I got it before the wrapper was ready.










These two cells are fairly good matched, at 30A they are a bit strained





















Conclusion

These cells are at the low end of capacity for 20700 cells, but instead they have a fairly good high current performance.



Notes and links

The batteries was supplied by Apexium for review.

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