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A small rectangular lithium battery and a matching charging coaster

HQRP

HQRP Battery for Plantronics Savi Office WH300 WH350 Headset + Coaster

SKU CH-GF64-HST77

Replacement lithium battery with coaster for Plantronics Savi Office headsets

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity250mAh
  • Battery Voltage3.7V
  • Replaces the original headset battery with a 250 mAh lithium cell
  • 7 V output matches the factory specification for WH300 and WH350 models
  • Works with Savi W710, W720, WO300 and WO350 headsets
  • Includes a dedicated coaster for convenient charging
  • Supplied as a single new pack ready to install

Replacement Battery for Plantronics Savi Headsets

This HQRP lithium-polymer pack delivers 3.7 volts and 250 mAh capacity for the Savi Office WH300 and WH350 models. It also fits the W710, W720, WO300 and WO350 headsets. The bundle includes a dedicated coaster for convenient charging.

Upgrade from a Depleted Original Cell

Swap this pack in when the factory battery no longer holds a full day of talk time. The jump is worth it if your headset dies before the workday ends or if charging cycles have become noticeably shorter. It restores the original runtime without modifying the device.

Limits of the Proprietary Form Factor

The cell uses a custom shape and connector locked to the Savi Office and Savi W series cradles. It cannot be charged on a standard USB dock or used in other headset families. The included coaster is the only supported charging method for this battery.

Highlights

  • Replaces the original headset battery with a 250 mAh lithium cell
  • 7 V output matches the factory specification for WH300 and WH350 models
  • Works with Savi W710, W720, WO300 and WO350 headsets
  • Includes a dedicated coaster for convenient charging
  • Supplied as a single new pack ready to install

Specifications

TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity250mAh
Battery Voltage3.7V

Questions about this item

Does the 250mAh lithium pack fit inside the Plantronics Savi Office WH300 headset without modification?

Yes, the 3.7V 250mAh cell is built to the same form factor as the original battery for WH300, WH350, W710, W720, WO300 and WO350 models.

What is the correct polarity orientation when sliding the replacement cell into the headset?

Align the red and black wires to the matching terminals on the headset PCB; reversing them will prevent charging and can damage the 3.7V lithium pack.

When should the 250mAh lithium battery be replaced again?

Replace the pack when talk time drops well below the original runtime or the headset no longer holds a charge after a full cycle on the coaster.

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