The cost effectiveness of rechargeable cells is at best questionable. Most of us, myself definitely, would be ahead in dollars by buying alkalines at under .20 cents each for AAs.
Consider the oft-quoted, cycle life. At only 500 cycles, if you had an eight pack, with 4 in use and 4 on standby and you recycled them every week, they could last 10 years. That's not going to happen because long before that there will be new technology (or marketing gimmicks) posted here on RFD and 8 cells will be in the dump. So, number of potential cycles in the hundreds has no relevance in real life.
Don't forget to factor in the initial fail rate (or under perform rate, as noted above) and the cost of those special chargers. Anyway, I'll still have a use for rechargeable cells because of the feel-good effect of re-usage.
Consider the oft-quoted, cycle life. At only 500 cycles, if you had an eight pack, with 4 in use and 4 on standby and you recycled them every week, they could last 10 years. That's not going to happen because long before that there will be new technology (or marketing gimmicks) posted here on RFD and 8 cells will be in the dump. So, number of potential cycles in the hundreds has no relevance in real life.
Don't forget to factor in the initial fail rate (or under perform rate, as noted above) and the cost of those special chargers. Anyway, I'll still have a use for rechargeable cells because of the feel-good effect of re-usage.