Thanks for the chart. Since the ARC AAA has gone through many changes over time, what era ARC is this?

Everyone should note that batteries perform differently under different loads. So a battery that does really well with low drain applications may not do well for a high drain application. This is why the 'shootout' graphs are run at different amperages.

Also, regulated lights like the ARC try to maintain their output even while the battery output runs down. The algorithm used will impact the output curve. That is to say, even with similar drains, if the lights use a different algorithm, your performance may differ. And regardless, these output curves will differ from a non-regulated device of similar output.

For example, lithium lights tend to do well in high draw applications. They also tend to have a flatter discharge curve. So with a non-regulated light with a higher output level, the lithium cells will blow away any alkaline. But a good regulated light can make the difference less pronounced.

-john