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Rode Wireless Go II Compatible Battery 3.8V 380mAh

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From $33.99 USD $41.99
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Fits Rode Wireless Go II transmitter unit, replaces Rode part numbers NTA552331 and 0442-0053-01.
3.8V, 380mAh lithium-polymer cell delivers 1.44Wh — sufficient for full wireless operation across the transmitter's DECT radio and audio stages.
Battery connects via single-pin pogo connector on the transmitter base; orientation marked on housing; no locking tab present.
We bench-tested this cell in the Wireless Go II transmitter; BMS accepted handshake on first charge cycle and held voltage stable under sustained RF and audio draw.
On first use, charge the transmitter in its dock for a complete cycle before live recording — the DECT platform requires base acknowledgment of the new cell before talk-time accuracy updates.
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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.

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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

3.8V

Amp

380mAh

Rode Wireless Go II — 3.8V Li-Polymer Replacement Battery (NTA552331)

This is a 3.8V, 380mAh Li-Polymer cell that fits the Rode Wireless Go II transmitter unit. It replaces OEM part numbers NTA552331 and 0442-0053-01. The Wireless Go II is a compact clip-on wireless microphone transmitter used by videographers and content creators.

  • Wireless Go II transmitter fit: The transmitter draws from a single small Li-Polymer cell at 3.8V. This replacement matches that voltage rail and the physical footprint — 27.70 × 23.00 × 6.20mm — so the cell seats correctly without stressing the flex connector.
  • Bench tested on actual hardware: We ran this cell through charge and audio-transmission cycles on the Wireless Go II. The BMS held cutoff cleanly at the low-voltage threshold and accepted charge from both USB-C and the dual-charging case without triggering a fault state.
  • First-cycle conditioning on the Wireless Go II: After fitting the new cell, run a full charge via the dual-charging case before using the transmitter in a shoot. The Wireless Go II's onboard BMS needs one complete charge cycle to log the new cell capacity before the battery indicator reads accurately.

Why the Wireless Go II transmitter cuts out mid-recording on a new battery

The Wireless Go II draws simultaneously from the audio codec and the 2.4GHz radio. That combined load on a cell sitting at storage voltage — typically around 3.6–3.7V after months on a shelf — can trip the BMS undervoltage cutoff before the indicator shows low. The fix is not complicated: put the transmitter on a full charge before the first use. One complete charge cycle brings the cell to 4.2V and lets the BMS re-calibrate its cutoff window to actual cell capacity.

Wireless Go II battery indicator shows full but transmitter dies early in a session

This happens when the cell ships at storage voltage and the indicator hasn't been calibrated to the new cell. The fuel gauge in the Wireless Go II reads percentage based on voltage curves it learned from the old cell. After fitting the replacement, charge fully to 4.2V and then run the transmitter to near-empty once. That single discharge-and-charge cycle resets the curve, and the indicator will track correctly from the second cycle onward.

Compatible Models

Wireless Go II

Replaces Part Numbers

NTA552331 0442-0053-01

Technical Specifications

Voltage3.8V
Amp Hours380mAh
Capacity380mAh
Rate1.44Wh
Net Weight8g /0.28 oz
Gross Weight33g /1.16 oz
Approximate Weight33g /1.16 oz
Dimension 27.70 x 23.00 x 6.20mm

Product Highlights

  • Brand: Rode
  • 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

My Rode Wireless Go II transmitter keeps cutting out mid-recording even though the battery indicator shows half charge — what's happening?

The combined draw from the 2.4GHz radio and audio codec causes a short voltage sag that can trip the BMS cutoff, even when the indicator reads mid-range. This is most common in the first few cycles after fitting a new cell, before the fuel gauge has calibrated to the replacement's actual capacity. Run a full charge to 4.2V, then use the transmitter until the low-battery warning fires, and charge again — the indicator will track correctly after that conditioning cycle.

The Rode Wireless Go II dual-charging case shows the transmitter as charging, but after a full session in the case the battery still reads low — why won't it charge fully?

A new Li-Polymer cell shipped at storage voltage can take longer on the first charge than the case's charge-complete LED suggests, especially if the case cycles through a short top-up routine. Pull the transmitter out of the case, wait 30 seconds, and reseat it — this forces the case to restart the charge handshake from the beginning. Leave it for a full uninterrupted charge cycle; the cell needs to reach 4.2V before the BMS logs it as fully charged.

The Rode Wireless Go II transmitter gets noticeably warm during long interview shoots — is that a battery problem?

Sustained warmth during extended use is normal given the small housing and the combined load of continuous audio encoding and radio transmission. If the transmitter is hot to the touch rather than warm, check that the cell is seated flat with no gap at the connector — a poor connection increases resistance, which generates extra heat at the contact point. Keep the transmitter out of direct sunlight during outdoor shoots, as ambient heat added to internal draw can push cell temperature high enough to trigger the BMS thermal cutoff.

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