Ltpgtthe duracell ultra battery gives up to 40 more power on high drain devices compared too the duracell plus batteries these also come with an integrated tester that lets you know how much power you have left in your batteryltpgt ltpgtduracell ultra batteries offer superior long lasting performance and are perfect for use in so many small electronic devices such as toys mp3 players tv remote controls and digital camerasltpgt ltulgt ltligtmaterial alkalinelt