Test/review of Fujitsu AAA HR-4UTI 750mAh (Blue)

[size=+3]Fujitsu AAA HR-4UTI 750mAh (Blue)[/size]



Official specifications:

• Typical capacity: 800mAh
• Minimum capacity: 750mAh
• Nominal voltage: 1.2V
• Fast charge current: 750mA
• Internal impedance: 40mOhm at 1kHz
• Weight: 11g
• Low self discharge.
• Ambient temperature: Fast charge: 0°C ~ 40°C, Discharge: 0°C ~ 50°C, Storage <90 days: -20°C ~ 40°C, Storage < 1 year: -20°C ~ 30°C

Maximum temperature raise at different discharge currents: 1A:+2,7°C, 2A:+6,3°C, 3A:+9,9°C, 5A:+14,7°C
Fujitsu has multiple series of AAA NiMH batteries, here it is the blue version.



I ordered two batteries, but the shop was obvious out of two-packs.









The two cells tracks nicely and capacity drops a bit with load, the 5A test was above the cells abilities.
















[size=+3]Conclusion[/size]

Looks like good AAA batteries.



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

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

I have a load of the white ones, part no HR-4UTC weight 11.5g

I wonder if there is any difference between the white and the blue version or is Fujitsu trying to get away from that eneloop look or some other reason.

From my personal experience the blue ones have only 2/3 of cycle life compared to the white ones. The blue ones don't seem to have real packaging, they are sold in bulk or "loose" (sellers usually pack them in plastic boxes), while the white ones come in nice blister packs.

They feel like Fujitsu Whites that did not pass the QA tests

Cheers,
AA Cycler