Test/review of Molicel INR21700-P42A 4200mAh (Gray)

[SIZE=+3]Molicel INR21700-P42A 4200mAh (Gray)[/SIZE]



Official specifications:

• Rated typical capacity: 4200mAh
• Rated minimum capacity: 4000mAh
• Nominal voltage: 3.6V
• Standard charge current: 4.2A
• Maximum charge current: 8.4A
• End of charge voltage: 4.20V +/-0.05V
• Continuous discharge current: 45A (Cycle life is reduced at high rates)
• End of discharge voltage: 2.5V
• Typical impedance: <15mOhm AC 1kHz
• Cycle life: 500 cycles at 4.2A charge and 10A discharge for 80%
• Operating temperature: Charging: -20°C ~ 60°C, Discharging: -40°C ~ 60°C
• Storage temperature: <35°C, recommended <35°C for long term.

This is a 21700 high current cell with good capacity.










The two cells match just about perfect and capacity do not really change with load.





I forgot the temperature sensor with the first battery.















[SIZE=+3]Conclusion[/SIZE]

This is good high current cells.



[SIZE=+3]Notes and links[/SIZE]

The batteries was supplied by N-Power Energy 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
Graphical comparison to 18650 and other batteries
Graphical comparison to 26650 and other batteries
Table with all tested LiIon batteries

So 20700/21700 are picking up pace with much larger 26650... I was sceptic at first when i saw this format but now.... Thx for the review! Do you have any info where can it be purchased? EU area

id30209 said:

Do you have any info where can it be purchased? EU area

Click to expand...

No, I got it directly from the distributor and I doubt he handles small orders.

A worthy competitor to the Samsung 40T. It has greater initial voltage drop than the 40T, but has higher capacity and less voltage drop at the end of the discharge curve