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Amazon.com: MPF Products 3.7V 140mAh 84598-01 82742-01 CPP-547 Battery Replacement Compatible with Plantronics Savi WH500, W440, W440/M, W740, W740/M & W745 Wireless Headsets : Electronics
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Wireless Headset Battery Replacement for Plantronics 84479-01, 86180-01 - 140mAh, 3.7V, Li-polymer | 800105167
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