Replacement Battery for CS540 Wireless Headsets CS540 battery only Not compatible with Plantronics Savi W740, W440, CS540-XD or CS545-XD 3.70v, 140mAh Li-ion Polymer Approximate dimensions .8″ x .5″ x .25″ Up to 7 hours talk time in CS540 Slide battery door off of headset to replace battery Not interchangeable with other batteries Note: printed on battery is “P/N 84479-01” Genuine Plantronics accessory BTP Model: PL-86180-01MFR Part: 86180-01,85Q98AA
