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Rectangular lithium-polymer battery pack with connector and installation tool

MPF Products

MPF Products 3.7V 930mAh Battery Replacement for Plantronics Calisto 620 Series (85442-01, 89305-01)

SKU CH-Y12P-G5JEJ

A 3.7V 930mAh lithium-polymer rechargeable pack replaces the 85442-01 or 89305-01 battery in Calisto 620 series speakerphones and includes an installation tool

  • Product typeBattery
  • Reliable power for Calisto 620 series with 3.7V 930mAh capacity
  • Direct replacement for part numbers 85442-01 and 89305-01
  • 4Wh lithium-polymer pack delivers consistent talk time
  • Includes free installation tool for easy battery swap
  • Compatible with Calisto 620, 620-M, P620 and P620-M models

Compatible Speakerphone Battery

This 3.7V 930mAh lithium-polymer pack replaces the original power source in Plantronics Calisto 620, 620-M, P620 and P620-M Bluetooth speakerphones. It matches the 85442-01 and 89305-01 part numbers and fits the 86700-01 and 86701-01 device models. The pack delivers 3.4W h of capacity for cordless conference calls.

Replaces Worn Original Cells

The battery upgrades a speakerphone that no longer holds a charge through a full meeting day. Swapping the depleted pack restores the designed talk time without buying a new conference unit. An installation tool is included so the exchange can be done at the desk. The jump is worth it when the original battery drains before the workday ends.

Steady Output During Long Calls

Under sustained load the lithium-polymer chemistry maintains a stable voltage across extended conference sessions. The 3.4W h rating supports continuous audio streaming without the voltage sag seen in aged cells. Performance stays consistent from the first minute to the last agenda item.

How it compares

Measured against everything we stock in Headsets, Cords & Phone Mounts, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 88% of the 796 comparable items (median $17.99).

Specifications

Product
Product typeBattery

Questions about this item

What connector does the 3.7V 930mAh pack use to fit the Calisto 620?

The pack is built to the exact 85442-01 and 89305-01 form factor, so it plugs directly into the speakerphone’s internal battery header without adapters.

Which step do people skip when installing the battery in a Calisto P620-M?

After opening the case with the included tool, the old pack’s connector must be fully seated before the new one clicks in; a loose plug is the most common reason the speakerphone won’t power on.

When should the 3.4Wh lithium-polymer pack be replaced in a Calisto 620-M?

Replace it when talk time falls well below the original rating or the speakerphone shuts down unexpectedly during a call, which signals the cells can no longer hold a full charge.

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