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Amazon.com: Replacement Battery 84598-01 82742-01 for Plantronics Savi W740, W745, W440, W445, WH500, CS540XD, W02 Wireless Headsets Headphones Repair : Electronics
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Synergy Digital Wireless Headset Battery, Works with Plantronics Savi W700 Wireless Headset, (Li-Pol, 3.7V, 140 mAh) Ultra Hi-Capacity, Compatible with Plantronics 82742-01 Battery - Walmart.com
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Plantronics Savi W745 Unlimited Talk Time Convertible Wireless Headset System & APC-42 Electronic Hook Switch (EHS) Adapter Combo | 86507-01 + 38350-12
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Replacement Battery for Plantronics Savi W02, W740, W745, W440 and CS540XD Wireless Headsets : Electronics - Amazon.com
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