[Since you've brought up the subject, how long do you keep using a set of rechargeables? I've got a cheap set that came with my R-09 and they've lost about half of their capacity since I've had 'em. I have a battery charger/discharger and it shows the mah levels and they're down near 1100 now. Should I toss 'em once they go under 1000mah?
I use mine till I don't feel comfortable that they will make a complete show . Than they get used in my flashlights.
Sometimes if you drain them completely (like in a flashlight over night), then recharge them, the capacity might be restored some.
And don't just toss them, drop them off at anyone of many stores that accept them for recycling.