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DURACELL Ultra M3 : 9V Battery : Pack of 1 UNIVERSAL Duracell Ultra M3 is Duracell"s best battery for electronic devices. It has been specifically formulated to meet the increasing power demands of high powered devices such as digital and flash cameras. Duracell Ultra also features a battery tester on every battery so you can check your power anytime anywhere.
Suitable for smoke alarms, radio transmitters, portable radios, wireless microphones
Duracell has also introduced colour coding on our batteries as well as the packaging, to help you remember which size you need.