Sofirn AA 3800mAh (White-Black)


Official specifications:

• Brand: Sofirn
• Voltage: 1.2V
• Chemistry: Ni-MH(Nickel Metal Hydride)
• Typical capacity: 3800mAh
• Minimum capacity: 3750mAh
• Rechargeable Times: up to 1000 times

Maximum temperature raise at different discharge currents: 1A:+1,6°C, 2A:+4,1°C, 3A:+6,9°C, 5A:+12,4°C, 7A:+16,7°C, 10A:+16,4°C
A NiMH with record capacity from a cheap brand, that is not realistic.











Discharge curves tracks in an acceptable way for NiMH and looks acceptable for the capacity. The problems is that the capacity is only 1500mAh, not the stated 3800mAh or in the 2000-2700mAh range that is very common, but less.















Conclusion

This is not a high capacity cell as marked, but a low capacity cell.



Notes and links

How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium