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Razer Turret PL803040 Compatible Battery 3.7V 500mAh

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Fits Razer Turret wireless mouse, replaces OEM part number PL803040.
This 3.7V 500mAh Li-Polymer cell restores full wireless range to the integrated mouse component.
Connector slides into the battery slot with polarity marked; locking tab seats flush against housing.
We bench-tested the BMS on a Turret receiver at 2.4GHz polling; voltage hold stable through discharge cycle.
After installation, press the Turret pairing button for three seconds to re-establish the wireless handshake with your receiver.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

3.7V

Amp

500mAh

Razer Turret Gaming Mouse — 3.7V Li-Polymer Replacement Battery (PL803040)

This 3.7V 500mAh Li-Polymer cell replaces the internal battery in the Razer Turret wireless mouse component. It fits the Turret gaming mouse (RZ01-0133, RZ84-01330100) and restores charge-holding capacity when the original cell has degraded. Voltage and footprint match OEM spec exactly.

  • Turret mouse compatibility: The Turret keyboard-mouse combo uses a separate rechargeable Li-Polymer cell inside the mouse module. All listed model numbers — RZ01-0133 and RZ84-01330100 — share the same 3.7V cell with PL803040 dimensions (41.48 × 29.55 × 9.26mm). Connector orientation matters here; confirm polarity before plugging in.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the Turret mouse platform. The BMS accepted the cell without fault flags, and the onboard charge circuit reached full termination voltage as expected. No swelling was observed across test cycles.
  • Mouse sensor power draw: Razer's optical sensor and wireless transmitter draw more current than a standard office mouse. Avoid leaving the Turret mouse on its charging pad indefinitely — trickle overcharge on a degraded original cell is one of the main reasons the OEM cell fails faster than expected. Charge until full, then unplug.

Why the Turret mouse loses pairing after a battery swap

A full power loss clears the volatile memory that holds the active USB receiver pairing on some Turret firmware versions. The mouse and receiver lose their handshake when voltage drops to zero during the swap. After fitting the new cell, unplug the USB receiver from the host machine and reinsert it. If the cursor still does not appear, hold the pairing button on the underside of the mouse for three seconds with the receiver plugged in.

Pointer stuttering or lag mid-session on the Turret mouse

When the Li-Polymer cell drops below roughly 3.5V under load, the wireless transmitter throttles its polling rate to stay within the reduced power budget. This appears as lag or skipped cursor movement — not a USB or driver issue. The stutter worsens as the cell ages because internal resistance rises and voltage sags faster under sensor draw. If the symptom disappears after charging and returns within a short session, the cell has degraded and needs replacement.

Compatible Models

Turret Turret gaming Mouse RZ01-0133 RZ84-01330100

Replaces Part Numbers

PL803040 FC30-01330200

Technical Specifications

Voltage3.7V
Amp Hours500mAh
Capacity500mAh
Rate1.85Wh
Net Weight14g /0.49 oz
Gross Weight39g /1.38 oz
Approximate Weight39g /1.38 oz
Dimension 41.48 x 29.55 x 9.26mm

Product Highlights

  • Brand: Razer
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The Turret mouse won't reconnect to my PC after fitting the new battery — cursor doesn't show up at all

A full power interruption during the swap clears the active pairing between the mouse and USB receiver. Unplug the USB receiver from your PC, wait five seconds, then reinsert it. If that doesn't work, hold the pairing button on the underside of the mouse for three seconds while the receiver is plugged in — the LED should flash to confirm re-pairing.

My Turret mouse cursor stutters and jumps around even with a new battery — what causes that?

Stutter after a fresh cell is almost always a seating or polarity issue at the connector, not a firmware problem. Check that the JST connector is fully clicked in and that polarity matches the original — reversed polarity will cause the mouse to power on briefly from residual charge before dropping out. Power the mouse off completely, reseat the connector, and power back on. If the cursor tracks cleanly after that, the connection was the fault.

The replacement battery drains much faster than the original did when it was new — is that normal for this mouse?

The Turret mouse runs Razer's optical sensor and a 2.4GHz transmitter simultaneously, so draw is higher than a typical wireless peripheral. If charge life is noticeably short from the first cycle, the cell may not have reached a full charge on its first use — Li-Polymer cells sometimes ship at storage charge (around 3.8V). Charge the mouse fully via its cable until the indicator shows complete, then use it normally. Capacity should stabilise within two or three full charge cycles.

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