2pcs 82742-01 204755-01 Replacement Battery for Plantronics Savi W740 W02 W745 W720 W440 W445 WH500 CS540XD WH500A W440-M W740-M C054A C074,PN:84598-01 86507-01 Wireless Headsets Headphones Repair.

Perfect compatibility with the original brand: your headphones work as long as the original talk time. 3.7V 140mAh/ 0.5W h 33*23*9mm weight: 5.4 g/ 0.19 ounces, The size is the same as the original.
Compatible model: for Plantronics Savi W740 W740-M W745 W720 W440-M W440 W445 W02 WH500 WH500A CS540XD C054A C074. Part Numbers84598-01 82742-01 204755-01 86507-01.
High SafetyThe battery has a built-in, microchip that prevents overcharging and discharging, short circuiting, overheating, etc. it protects the battery and protects you.
EASY Install: easy to change out, simply pop out the old one then slide in the new battery and the repair work is done
Professional Services: If you have any questions about our products or have any questions during use, please contact us to provide you with the perfect solution within 24 hours.