Duracell Lithium's or eneloop pro for me.You're right about the charger John, I've been though several over the years and the one I use now is the Nightcore Digicharger D4, 12 or 220v
I went for eneloop pro'sThanks for the advice everyone
I've ended up switching all of my (relatively few) used flashlights over to lithium after I let an Enloop get too low of a charge in an E01 several years ago. I'd rather not have to worry about outgassing or leaking batteries, and with how rarely I actually have to switch out batteries, it's worth the small premium in cost. On that related note, I need to pick up some more lithium AAAs when I next go to Target.