Razer Barracuda X Compatible Battery 3.7V 1200mAh Li-Po
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Razer Barracuda X Compatible Battery 3.7V 1200mAh Li-Po - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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.
Disclaimer
Disclaimer
⚠️ 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.
Razer Barracuda X Compatible Battery 3.7V 1200mAh Li-Po - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
1200mAh
Razer Barracuda X — 3.7V Li-Polymer Replacement Battery (ACE503450)
This 3.7V, 1200mAh Li-Polymer cell replaces the internal battery in the Razer Barracuda X wireless gaming headset. It fits the Barracuda X directly, matching the original ACE503450 specification at 4.44Wh. Swap it when the original cell no longer holds charge through a full gaming or listening session.
- Barracuda X battery fit: The Barracuda X uses a single 3.7V Li-Polymer cell to power both the audio driver and the 2.4GHz wireless radio simultaneously. The ACE503450 footprint — 52.30 × 33.70 × 6.00mm — matches the original cell housing with no modification needed.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a Barracuda X unit, confirming the BMS accepted the new pack without a charging error and balanced current draw across the combined audio and wireless radio load.
- First-charge protocol for Barracuda X: Seat the headset in the USB-C charging position and run a complete charge before first use. The headset's internal fuel gauge needs one full cycle to calibrate the new cell — skipping this causes the charge indicator to read inaccurately for the first several uses.
Voltage sag under combined audio and 2.4GHz radio draw
The Barracuda X pulls current from a single small cell for two simultaneous loads — the audio amplifier and the wireless radio. When the cell ages and internal resistance rises, voltage sags briefly during radio transmission bursts. The BMS reads this as a low-cell condition and triggers a cutoff to protect the pack. A fresh ACE503450 cell has lower internal resistance, so the voltage rail stays stable under the same combined load.
Charge indicator shows full but headset cuts off after short use
This happens when a new cell ships at storage voltage — typically around 3.6–3.7V — and the headset's fuel gauge hasn't yet mapped the cell's actual capacity. The indicator reads "full" based on voltage alone, but the usable capacity estimate is wrong. Run one complete charge cycle from flat to full via USB-C and the gauge will recalibrate. After that cycle, the charge readout tracks correctly against the rated 1200mAh capacity.
Compatible Models
Replaces Part Numbers
Technical Specifications
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
My Razer Barracuda X cuts out mid-game even with the new battery showing charge — what's causing it?
The Barracuda X drives both its audio amplifier and 2.4GHz radio from one small cell, and brief transmission bursts create sharp current spikes. If the BMS flags a voltage dip during one of those spikes, it triggers a cutoff before the cell is actually depleted. Run a full charge cycle first — a cell at storage voltage has a tighter usable window and trips the BMS earlier. After one complete charge-to-discharge cycle, the cutoff threshold behaviour stabilises.
The headset feels noticeably warm during long sessions — is that normal with the new pack?
Some warmth is expected. The Barracuda X houses a small Li-Polymer cell in a compact plastic shell with minimal airflow, while simultaneously powering audio output and wireless transmission. The combined draw creates sustained heat in a confined space. What to watch for: if the headset becomes hot rather than warm, or if the BMS cuts power abruptly, let the headset cool for 10 minutes and then charge it fully before the next session — sustained heat above 45°C accelerates cell degradation.
After fitting the new battery, the talk-time seems shorter than rated for the first few uses — is the cell faulty?
It isn't faulty. Li-Polymer cells need three to five full charge-discharge cycles before they reach rated capacity. In the first few cycles, the cell's electrolyte hasn't fully wetted the electrode surfaces, so usable capacity runs slightly below the rated 1200mAh. Charge fully via USB-C, use the headset until the low-battery warning triggers, then recharge completely — repeat this three to five times and rated capacity will be reached.
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