Test/review of GP ReCyko+ AA 2700mAh (Green)

Batteries and Chargers Rechargeable Batteries
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GP ReCyko+ AA 2700mAh (Green)







Official specifications:

  • Nominal voltage: 1.2V

  • Typical capacity: 2600mAh at 500mA discharge to 1.0V at 20°C

  • Nominal capacity: 2500mAh

  • Lifetime: 6 years or 300 cycles

  • Low self discharge

  • Recommended discharge current: 250 to 7500mA

  • Fast charge: 1250mA to 2500mA with -dv/dt

  • Service life: >500 cycles (IEC standard)

  • Internal resistance 18mOhm (range 14-28mOhm) at 1000Hz

  • Ambient temperature range: Standard charge 0°C ~ 45°C, Fast charge: 10°C ~ 45°C, Discharge: –20°C ~ 50°C, Storage: –20°C ~ 35°C



Maximum temperature raise at different discharge currents: 1A:+1,2°C, 2A:+3,4°C, 3A:+5,9°C, 5A:+11,1°C, 7A:+16,3°C, 10A:+23,0°C











Fairly standard NiMH discharge curves, the cell are not matches completely. They have a lot of capacity at low current draw and as usual the capacity goes down with load. At very high current (Above 5A) the cells need to be warm for best performance.















Conclusion

These batteries has good performance, especially at low current draw.



Notes and links

How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium
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Would those batteries be at the lower scale of price and what would the charging time be?