We recommend Rocket and Energizer alkaline batteries for all of our battery operated products. Established in 1946, Korean Rocket Electric Co., Ltd. is one of the worlds original battery manufacturers and a top 5 battery maker. Producing 3.5 million units a day, Rocket Electric exports batteries to more than 60 countries worldwide and is the #1 brand of choice in Korea. Rocket Electric provides global electronics leaders, like LG and Samsung, with batteries for their remote controls, toys, radios and portable devices. If you have ever purchased an LG or Samsung television, Rocket batteries powered your remote and no doubt for a year or more. Our in-house tests conclude that Rocket Batteries are the highest quality and equal if not superior in performance versus Energizer. Superior performance quality at a reasonable price, thats a Rocket Battery.