Battery capacity is almost universally spec'd at a 0.2C discharge rate, so 500 mA for a 2500 mAh battery, or 600 mA for a 3000 mAh battery. Manufacturers usually use 2.5V as the cut-off, but the curve below 3.0V is very steep, and I've found using 2.8V as the cut-off gets me within a few percent of rated capacity on new cells. Here's an example comparing two used (for one year) 30Qs with two unused ones from the same batch:Quick update on the Asmodus battery analyzer. Don't know how accurate it is but it's looking good on consistency. I ran the capacity test on four almost new batteries. Each battery scored within a 10mah range three times. Ex, one battery scored 2685, 2678, and 2679. All four batteries had probably been used 2 or 3 times. The total range for all four was around 35.
That's for 3000mah HG2's. Run with cutoff of 3.0V and discharge rate of 2A.
Now I'm going to try it with older batteries.
