Eneloop or Tenergy. They are pricey, but, especially with the Tenergy high capacity batteries, they last a long time. I'm going on 2 years with the original 24 pack I bought. I also spent a bit more and got the matching 16 bay charger. You can get them in both AA and AAA. They even sell packs that come with 12 of each. Between my portable medical equipment, and all the different rc radios, game controllers and tv remotes, we use a lot of AA's and AAA's, and those are the only brands I will buy. I've tried different brands, and none of them work nearly as well as those two brands do. Avoid the Amazon basics brand. They are absolute garbage.