Battery for Savi 8220 Office/UC

Replacement Battery for Poly Savi 8220 Office & UC Wireless Headset Systems Rechargeable Lithium Ion Polymer (Li-Ion) battery Up to 13 hours talk Up to 50 hours standby time Not compatible with other Poly wireless headsets Approximately 3/4″ X 1-1/4″ X 1/8″ thick Fully recharge the battery in 3 hours 490 mAh Printed on battery “203035-01” Genuine Poly accessory BTP Model: PL-213199-01MFR Part: 213199-01,85R39AA