The AAA cells I mentioned there bubbled to the top of the heap on my desk again, so I charged them, let them sit around for a few days to stabilize, then ran a discharge test.
The top (black) trace is all four AAA cells in series; the two steps correspond to the two weakest cells failing. The red trace is the surviving two cells. The green trace is the strongest cell, which supplied current during all three traces.
They’re nominally 900 mAh, but the results are pretty much what you’d expect.
The most durable cell, the last one to fail with the green trace, had a capacity of a bit over 500 mAh: slightly over half the rating. The weakest cell (the first step on the black trace) failed after a mere 250 mAh.
Junk. Pure junk. I’ll give ’em another charge just to see what happens, but don’t hold your breath anticipating a resurrection.
The Smell of Molten Projects in the Morning 
Comments
One response to “Digital Concepts AAA NiMH Cells: Craptastic!”
Methinks rechargeable batteries have reached the advanced stage where all product claims can be assumed to be false. This corresponds to the state of the hi-fi industry in the 1960s and 1970s, (and the vacuum cleaner industry even to this day), when they were claiming “peak music power” well in excess of what any line cord could deliver …