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Rectangular black lithium-polymer battery measuring 54 by 33.8 by 7 mm

Cameron & Co

Cameron & Co DS-CS-RZU301SL standard battery 3.7V 1000mAh

SKU CH-8YEW-3WAG8

Replacement Li-Polymer battery for Razer Nari Ultimate headsets, 3.7 V 1000 mAh, 54 × 33.8 × 7 mm

  • TypeBluetooth Headset
  • Li-Polymer chemistry delivers stable voltage for consistent headset performance
  • 7 V 1000 mAh capacity matches original PL503450 specifications for full runtime
  • Direct fit for Razer Nari Ultimate RZ04-02670100-R3U1 and RZ04-02670100-R models
  • Compact 54.00 x 33.80 x 7.00 mm profile slides into existing battery compartment
  • Brand-new Cameron Sino cell ensures 100 % OEM compatibility out of the box

Replacement battery for Razer headsets

This lithium-polymer pack replaces the original PL503450 cell inside compatible Razer headsets including the Nari Ultimate and models carrying part numbers RZ04-02670100-R3U1 and RZ04-02670100-R. It delivers a nominal 3.7 V and 1000 mAh capacity in a black housing that matches the factory appearance. The unit is supplied new and is built to OEM dimensions of 54.00 x 33.80 x 7.00 mm for a direct fit.

Steady discharge for long sessions

Under continuous wireless use the cell maintains a stable voltage curve without the sharp sag seen in aged packs, so microphone clarity and surround processing remain consistent through extended gaming or calls. The 3.7 Wh rating supports multiple hours of active listening before a recharge is required. Li-Polymer chemistry also limits self-discharge when the headset sits idle for days.

Verify connector and shell before ordering

Confirm that your headset uses the exact PL503450 part number and that the internal connector orientation matches the original layout, as some revisions differ. The replacement is not suited for headsets that require a higher capacity pack or a different voltage rail. Buyers who need a larger energy reserve for marathon sessions should look elsewhere.

Highlights

  • Li-Polymer chemistry delivers stable voltage for consistent headset performance
  • 7 V 1000 mAh capacity matches original PL503450 specifications for full runtime
  • Direct fit for Razer Nari Ultimate RZ04-02670100-R3U1 and RZ04-02670100-R models
  • Compact 54.00 x 33.80 x 7.00 mm profile slides into existing battery compartment
  • Brand-new Cameron Sino cell ensures 100 % OEM compatibility out of the box

Specifications

BrandCameron Sino
ModelDS-CS-RZU301SL
TypeBluetooth Headset

Questions about this item

How much heat does the 3.7 V 1000 mAh cell generate during all-day headset use?

The lithium-polymer chemistry runs cool under typical headset loads; no active cooling is needed and the slim 7.00 mm profile fits the original battery cavity without trapping heat.

Which tools or connectors must I already have to install this replacement in a Razer Nari Ultimate?

You will need a small Phillips screwdriver to open the ear-cup and the existing two-pin JST-style plug already on the headset; the new pack uses the same connector so no soldering is required.

Will the 54.00 × 33.80 mm footprint fit the older Razer Barracuda or BlackShark V2 Pro models that share the PL503450 part number?

Yes, the dimensions and 3.7 V 1000 mAh rating match the original PL503450 cell used across those headsets, so the battery seats correctly and the headset reports capacity normally.

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