Originally posted by dominikkolendo i've tried duracell rechargeables, eneloops, rayovac hybrid, and sonycycle energy NIMh's in my K100dS and Kx.
the rayovac hybrids worked best, they would last forever.
the sony ones did well (the 2100 and he 2300-2500 both seemed to last about as long)
the duracell and eneloops both lasted noticably shorter.
most important is to get a smart charger (that senses how full the batteries are and can drain them before a charge), not the cheap timer one i felt.
now that i have a K5, i just have a ton of batteries sitting around though.
slightly old post I know, but i was looking at the sony ones today. Not a bad price. Thought I'd give them a try. What kind of charger do you recommend? Is it a sony charger? They've got a 2 battery pack with a small charger, and then the 4 packs of 2500 batteries. I'm not sure how much luck I'd have finding a smart charger here in Korea without a model number to search for.