Maximum temperature raise at different discharge currents: 1A:+2,3°C, 2A:+5,8°C, 3A:+9,0°C, 5A:+12,5°C
These cells are high capacity NiMH from the FDK factory in Japan.
There is very good tracking between the two cells. They can handle 5A current, but as usual it is better to use a lower current.
Conclusion
These cell has very good performance.
Notes and links
The batteries was supplied by FDK German for a review.
Another funny thing with the capacity figures. This cell cannot do 950mAh even if brand new, and I doubt going down to 0.8V would change anything. Where do you get those figures, Henrik?
Another example is the Panasonic NCR18650G 3600mAh (green), it's rating can only be 3300mAh minimum down to 2.5V, I guess of course. Only a miracle would make that cell hit 3600mAh under HKJ's testing conditions. Literally. :}
Unless I’m mistaken the 950mAh comes from Fujitsu’s claim for the battery. I just bought 2 packs of them and I only got around 850 mAh discharging at .7A.
Forgot to mention that of the 80 or so 1900 mAh Enloops I’ve bought over the past 5 years none of them ever tested out at that capacity. At first I thought I had defective batteries or equipment but then I realized it was just the way things are.
However the 12 Fujitsu HR-3UTHC 2450mAh that I bought several weeks ago tested out at: 2510, 2474, 2561, 2521, 2451, 2427, 2478, 2467, 2461, 2479, 2513, and 2455 when discharged at .5A on my Opus 3100.
HKJ’s test results also show them to exceed Fujitsu’s claim unlike the AAA’s.
If I am to sell something I deeply believe in claiming actual figures which my product can meet or surpass at the hands of my customers. This carves out trustworthiness and peace of mind.
Even I see for mobile phone batteries, I have a Samsung Galaxy S9 Plus equipped with a battery that is officially 3500mAh and when I use the battery manager “AccuBattery” (very good software fairly accurate) that installed as soon as I bought the phone so new, based on the first 10 complete cycle of charge/discharge, the battery did not exceed 3420mAh according to his estimate, so there is always a gap between what is written on the paper and reality.