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This A177 battery is Alkaline and cylindrical; it is a little shorter in length than a standard AA battery and a little slimmer. It sports a pair of mini-snap connectors, one at each end. It produces 10.5 volts. It is the perfect replacement for the hard to find Duracell PC177A and Energizer EN177A. This TR177 sized battery fits several Sony long shotgun type condenser microphones such as the Shure SM82, Shure SM82-LC. This TR177 battery uses Alkaline chemistry. This makes it a perfect replacement for the Alkaline Duracell PC177A and Energizer EN177A, but has greater longevity and more consistent voltage. It is also a good replacement for those 9.8 volt or 9.45 volt Mercuric Oxide versions. This battery also seems to be a good alternative to the 7MR9 and H-7D mercury batteries in several applications such as the Sony C76,and several other microphones too, though our A1611 battery is better. |