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Small green rectangular lithium-polymer battery 15.5 by 22.5 by 5.6 mm

Centenex Electronics

Centenex Electronics BAPLANTRONIC_CS540A cell phone battery 140mAh 3.7V Li-Polymer

SKU CH-9P9C-68STW

Replacement Li-Polymer battery for Plantronics CS540, CS540A and CS540-XD headsets, 140 mAh at 3.7 V

  • Product typeBluetooth Headset
  • Direct replacement for Plantronics CS540 series headsets
  • 140 mAh capacity delivers reliable talk time
  • 7 V Li-Polymer chemistry matches original spec
  • Slim 15.5 x 22.5 x 5.6 mm profile fits battery compartment
  • 100 % OEM-compatible new cell ensures proper fit

Direct replacement for Plantronics CS540 headsets

This Centenex Electronics BAPLANTRONIC_CS540A battery replaces the original power cell in Plantronics CS540, CS540A and CS540-XD wireless headsets. It matches part numbers 86180-01, PL-86180-01 and 84479-01 for a direct fit. The pack is new and rated at 100% OEM compatible.

Li-Polymer chemistry in a compact green housing

The battery uses Li-Polymer chemistry rated at 140mAh, 3.7V and 0.55Wh. Its green casing measures 15.5mm by 22.5mm by 5.6mm, matching the slim profile required by the headset's internal compartment. The form factor allows the battery to seat securely without forcing the housing.

Single-unit pack ready for immediate installation

One battery is supplied in the package with no additional tools, cables or software included. The installer simply opens the headset, swaps the old cell for this unit and closes the case. No firmware updates or configuration steps are required after the physical replacement.

How it compares

Measured against everything we stock in Replacement Phone Batteries, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 98% of the 868 comparable items (median $14.99).

Specifications

Product
Brand nameCentenex Electronics
Model nameBAPLANTRONIC CS540A
Product typeBluetooth Headset

Questions about this item

What connector or interface does the BAPLANTRONIC_CS540A battery use to attach to the headset?

It connects via the internal solder pads inside the Plantronics CS540, CS540A or CS540-XD headset; no external plug is present.

Will the 15.5 x 22.5 x 5.6 mm dimensions fit my Plantronics CS540 battery compartment?

Yes, those exact measurements match the original 86180-01 and 84479-01 cells for CS540, CS540A and CS540-XD models.

How do I install the battery, and which step do people often miss?

Open the headset, disconnect the old cell, solder the new leads observing the red and black polarity, then reassemble; the step often missed is verifying polarity before soldering.

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