[HKJ]

Vapcell IMR14500 700mAh (Yellow)




Official specifications:

• Product: Vacell 14500 700mAh
• Model: IMR 14500
• Size: 14.0*49.0mm
• Nominal voltage: 3.6V
• Charge voltage: 4.2V
• Typical Capacity: 700mAh (0.2C discharge)
• Min capacity: 650mAh (0.2C discharge)
• top: Flat top/button top
• color: yellow
• weight: 25g max
• Internal Resistance: <80mOhm
• Standard Charge: 0.5A, 4.20 ± 0.05 V, CCCV 100mA cut-off
• Continuous maximum charge current: 2A
• discharge cut-off voltage: 2.5v
• Continuous maximum discharge current: 4A
• Operating environment: Charging, 0°C ~ 40°C, Discharging, -20°C~55°C
• Storage environment: -20°C~55°C, storage >3 months: -20°C~45°C

The AA sized high current LiIon from Vapcell.










Nice looking discharge curves, the cell performes well with nearly constant capacity up to 3A, but 5A is to much.















Conclusion

A good performing cell with both fairly high current and capacity, but the chemistry type used has a slightly low voltage at high currents.



Notes and links

The batteries was supplied by Vapcell 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
Comparison to other LiIon batteries