I've had these 4 Panasonic NiMh batteries since Christmas 2002. They have been used 98% of the time in our digital cameras. Lately they seem to not hold a charge very long, but after 11 years I can't complain! They are not high capacity and are not LSD cells. In the photos below I did not do a capacity test, I simply charged them and checked the display for how much mAh was put in them. They were likely discharged and left that way for a few weeks (they were recently found in my brother-in-laws camera case).
I have a few of those cells too, think they were from costco. They were pretty good when I used them but over time they could not hold a charge for very long.
you really need to do a discharge test to determine capacity, if the batteries are burning most of the energy as heat you won’t know it from these numbers
What I have noticed about old NiMh cells that when they get old, they still charge up pretty well but the self discharge rate increases. I have some older ones that self discharge in about a week.
I have some old sanyos which got a really high resistance, if I discharge them at 1A they immediately go down to below 1V.
They are still usable in some things but I will probably toss them someday…
I did do a discharge test on 2 of them a little while ago when I started noticing they weren't holding a charge very long. I believe they came out around 1800mAh. I'll replace them for camera duty with some of the Duraloops that dchomak sold me.