I ordered 4pcs AAA NiMH cells. Advertised capacity was 900mAh and 12g for each cell. I did a capacity test with my ISDT C4 smart charger (3 rounds). Charged until full, discharge rate approximate 0.5C/0.4 amps. Cutoff at 0.8V. Here are the results (average value) for each cell. Cell 1: 11.7g 780mAh, Cell 2: 12.9g 870mAh, Cell 3: 12.7g 870mAh, Cell 4: 12.7g 860mAh. These cells should be advertised as 850mAh.
I'm very satisfied