Test/Review of Vappower IMR26650 4200mAh (Green)

[HKJ]

[size=+3]Vappower IMR26650 4200mAh (Green)[/size]

Official specifications:

• Battery Capacity (Mfg Rated): 4200 mAh
• Battery Chemistry: Li-Ion
• Battery Feature: Rechargeable
• Battery Form Factor 26650
• Battery Maximum Voltage: 4.25 V
• Battery Minimum Voltage: 2.5 V
• Battery Rated Voltage: 3.7 V
• Minimum capacity: 4100mAh
• Continuous charge current (maximum): 4A

These are big cells high current cells.

As usual the current rating is a bit optimistic, but they do look good with very nice tracking between the cell and constant capacity up to 15A. 20A is also handled, but at 30A the voltage drops.

[size=+3]Conclusion[/size]

These cell has very good high current performance for the capacity, but keep the load at 20A or below.



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

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

 

[SubLGT]

Perfect timing, I was recently thinking about buying one of these. Less voltage sag, and higher capacity (at 3A and 7A) than my previous favorite, the Keeppower IMR26650 4200mAh. In another 3A test I saw, it had much less voltage sag than the green Efest 4200mAh battery, but slightly less capacity.