I finally found a couple sets of these batteries with the $5 rebate and bought them. (thanks werewolf for the tip on where to find them)
I immediately began testing using my MAHA MH-C9000 charger which allows for analyzing and reporting the true capacity of each battery independently.
The charger came with two 2100mAH AA batteries and two 800mAH AAA batteries. I bought two sets so that I would have 4 of each type of battery.
First I tested the capacity of the batteries which were charged by the factory before packaging. Then I put the batteries through several recharge/analyze cycles and discharge cycles to see if the batteries improved with several successive charge cycles.
All results will be reported in mAH as measured by the charger.
Initial capacity out of the box (discharge #1):
AA: 1758 1748 1631 1697
AAA: 616 606 634 632
First refresh/analyze cycle:
AA: 1992 1985 1960 1977
AAA: 771 770 769 779
Discharge #2
AA: 1951 2031 1992 1985
AAA: 778 774 781 791
Second refresh/analyze cycle:
AA: 1947 1964 1938 1954
AAA: 768 765 789 800
Discharge #3
AA: 1956 1982 1988 1999
AAA: 790 781 789 779
All in all, I am pleased with the initial performance of these batteries. Their capacity improved a bit with a few charging cycles (as it should) and all of the batteries have true capacities within 6% of their specification. Considering that most battery manufacturers exaggerate capacities by about 10%, this is very good.
The 800maH AAA batteries have an average capacity which is 98% of their specification. This is almost unheard of, and most battery manufacturers would have labeled them as 850 or 900maH batteries.
To test the long term ability of these batteries to hold a charge, I am storing these batteries for the next two months and will test 2 of each type at 1 month and 2 month intervals to gauge how well these batteries really do hold their charge over time.
Although these hybrid rechargeables do not yet have the capacity of the highest performing standard NiMH batteries, they will definitely fill a niche in my battery collection for the devices I rarely use but want to know will work when needed because I am too cheap to purchase disposable batteries for anything except a smoke detector or emergency flashlight in my glove box.