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Rectangular black lithium-ion battery pack, 40 by 31 by 6 millimetres

Centenex Electronics

Centenex Electronics DS-CS-PWT300SL Headset Battery 3.7V 700mAh Black

SKU CH-GSVW-N3NX9

Li-ion replacement battery, 3.7 V 700 mAh, fits Panasonic WX-SB100, Attune II HD3, WX-CH455, WX-ST100 and WX-ST300 headsets

  • Product typeBluetooth Headset
  • Powers Panasonic Attune II HD3 and WX series headsets
  • 7 V 700 mAh lithium-ion cell delivers 2.59 Wh runtime
  • Slim 40.00 x 31.10 x 5.90 mm profile fits original compartment
  • Replaces OEM part WX-SB100 with 100 % compatibility
  • Ready-to-install black battery for immediate use

Compatible Panasonic Headset Models

This replacement battery fits Panasonic Attune II HD3, WX-CH455, WX-ST100 and WX-ST300 wireless headsets. It matches the original WX-SB100 part number for direct compatibility. Buyers with other Panasonic models or different brands will need a different battery.

Lithium-Ion Chemistry Limits

The Li-ion cell delivers 3.7V and 700mAh for a 2.59Wh energy rating. Capacity will fade with charge cycles and storage time. Users expecting indefinite runtime without degradation should not choose this chemistry.

Physical Dimensions Decide Fit

The pack measures 40.00 x 31.10 x 5.90 mm and must match the headset's battery compartment exactly. Builders who cannot verify these measurements against their device should not order this part.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 70% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameCentenex Electronics
Model nameDS-CS-PWT300SL
Product typeBluetooth Headset

Questions about this item

Which capacity matches my Panasonic headset?

This cell is rated 3.7V 700mAh (2.59Wh) and replaces the WX‑SB100 pack used in the Attune II HD3, WX‑CH455, WX‑ST100 and WX‑ST300 models.

What run‑time does 700mAh give in daily use?

At 3.7V the 2.59Wh capacity typically powers a compatible Panasonic headset for several hours of talk time and multiple days on standby before needing a recharge.

Does the two‑wire JST connector fit the WX‑ST300 battery slot?

Yes, the 40.00×31.10×5.90mm Li‑ion pack uses the same two‑pin JST interface as the original WX‑SB100, so it slots straight into the WX‑ST300 and the other listed headsets.

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