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Small black rectangular lithium-polymer battery pack with two wires, about forty-nine by thirty-one by six millimetres

Centenex Electronics

Centenex Electronics DS-CS-STH400SL Li-Polymer Battery 3.7V 900mAh for Stealth 400 500

SKU CH-636D-CHCMW

Replacement Li-Polymer battery delivers 3.7 V and 900 mAh for Stealth 400 and 500 headsets

  • Product typeBluetooth Headset
  • Restores headset runtime with 3.7 V 900 mAh Li-Polymer cell
  • Matches original FT603048P part for Stealth 400 and 500 models
  • Slim 48.70 x 30.80 x 5.90 mm profile fits battery compartment
  • Delivers 3.33 Wh capacity for extended wireless sessions
  • Brand-new OEM-compatible unit ensures reliable performance

Replacement Battery for Stealth 400 and 500 Headsets

The Centenex Electronics DS-CS-STH400SL is a lithium-polymer battery rated at 3.7V and 900mAh. It is built to fit Stealth 400 and 500 wireless headsets that use the FT603048P cell. The pack measures 48.70 x 30.80 x 5.90 mm and comes in black.

For owners of compatible Stealth headsets needing

This unit suits anyone whose Stealth 400 or 500 headset no longer holds a charge. It is not for users of other headset models or different Stealth generations. Buyers who need a higher capacity than .9 Ah or a different voltage should look at something else.

Delivers 3.33 Wh for standard wireless sessions

The 900 mAh capacity provides typical listening time for the supported headsets. It runs out when the charge is depleted and requires recharging via the headset's own circuit. The physical size limits it to the specific battery compartment designed for the FT603048P part.

How it compares

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

Price $14.99
Cheaper than about 75% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameCentenex Electronics
Model nameDS-CS-STH400SL
Product typeBluetooth Headset

Questions about this item

What headset models must I already own for the DS-CS-STH400SL battery to fit?

This replacement battery is compatible with Stealth 400 and Stealth 500 wireless headsets using part number FT603048P.

Will the 3.7V 900mAh Li-Polymer cell work with the original charging circuit in my Stealth 400 headset?

Yes, the 3.33 Wh cell matches the factory voltage and capacity so the existing charger will operate normally.

How can I confirm the DS-CS-STH400SL is performing correctly after installation?

The headset should power on, hold a charge for the expected runtime and show normal battery-level indication in the companion app.

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