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Rectangular black lithium-polymer battery, 43 by 35.8 by 13 mm

Centenex Electronics

Centenex Electronics DS-CS-ETC800SL Replacement Battery 3.7V 950mAh Li-Polymer Black

SKU CH-T2VY-B3NFA

A 3.7 V, 950 mAh lithium-polymer replacement battery for Eartec CS-800LI ComStar wireless headsets

  • TypeBluetooth Headset
  • Direct replacement for Eartec CS-800LI headsets
  • 7 V 950 mAh lithium-polymer cell delivers 3.52 Wh
  • Compact 43.00 x 35.80 x 13.00 mm form factor
  • Brand-new OEM-compatible unit ready to install
  • Black finish matches original headset aesthetics

Direct Replacement Battery

The Centenex Electronics DS-CS-ETC800SL is a 3.7V 950mAh lithium-polymer cell built to replace the original Eartec CS-800LI battery in ComStar wireless headsets. It delivers 3.52Wh of capacity in a black 43.00 x 35.80 x 13.00 mm pack that fits the existing compartment without modification.

Steady Talk-Time Delivery

Under continuous use the cell maintains its rated 0.95 Ah output without the voltage sag that appears in aged packs, keeping the headset active through a full shift instead of cutting out mid-call. The lithium-polymer chemistry holds a stable discharge curve so audio quality and wireless range stay consistent until the charge is genuinely depleted.

Upgrade From Worn Originals

This unit replaces a depleted CS-800LI that no longer holds a usable charge, restoring the headset to its factory run-time without buying a new headset. The jump is worth it when talk time has fallen below half a day or the battery swells, but it will not add extra capacity beyond the original 950mAh specification.

Highlights

  • Direct replacement for Eartec CS-800LI headsets
  • 7 V 950 mAh lithium-polymer cell delivers 3.52 Wh
  • Compact 43.00 x 35.80 x 13.00 mm form factor
  • Brand-new OEM-compatible unit ready to install
  • Black finish matches original headset aesthetics

Specifications

BrandCentenex Electronics
ModelDS-CS-ETC800SL
TypeBluetooth Headset

Questions about this item

How much heat does the 3.7 V 950 mAh pack generate when the headset runs all day?

The 3.52 Wh cell stays cool during continuous talk time; no active cooling is needed.

Which existing connector on the Eartec CS-800LI ComStar headset does this battery plug into?

It matches the original CS-800LI socket, so the headset you already own is the only hardware required.

Will the 43.00 × 35.80 × 13.00 mm form factor fit the same compartment used by older Eartec ComStar packs?

Yes, the dimensions are identical to the factory battery, so it slides into the existing bay without modification.

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