To be fair, this battery’s capacity is rated at a discharge to 2.5V. HKJ only discharges it to 2.8V, which might not consume full capacity of the cell.
Once you get down below 3.0v the drop is precipitous. Not really much down there that’s useful, and it’s not good for the battery. Who is actually going to use a cell like this from 4.2v > 2.5v at 0.1A on a routine basis? It would be like testing MPG on a car by driving it at 30mph a glass track with a tailwind and crowing about the results.
You can nitpick methodology, but it’s mostly just marketing hype, and they seem to over ride the engineering dept anymore. Seems very few are immune to it.
If you need to know how much capacity until 2.5V you need to look somewhere else, at ECF for example (Mooch's reviews). Barely anything changes, though.
This cell claims 3250mAh minimum capacity, a figure which is not met at less than rated discharge (0.2C = 680mA) down to 2.8V (3236mAh at 0.5A). Suffice to say KeepPower does not seem to do any in-house testing to their rewrapped cells, their cell testing machinery is incorrectly calibrated, they overlook the results or any combination of the aforementioned.
The table generator has some automatic quality check of the data and will only include batteries if they fulfil them. The problem may be that I only have a 0.2A discharge for one of the batteries.