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Jabra Pro 900 Replacement Battery AHB5-2229PS 3.7V 250mAh

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From $22.99 USD $28.99
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Fits Jabra Pro 900, Pro 920, Pro 923, Pro 930 headsets; replaces OEM part AHB5-2229PS.
3.7V, 250mAh lithium-polymer cell delivers full wireless calling range without mid-call audio dropout.
Connector seats flat into the battery slot with single locking tab; no polarity risk.
We bench-tested this cell in the Pro 923 base station; BMS accepted handshake on first insertion without errors.
On first use, charge the headset in the base station for one complete cycle before taking calls — DECT platforms require the base to log the new cell before talk-time estimates stabilize.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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.

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.

Voltage

3.7V

Amp

250mAh

Jabra Pro 900 Series — 3.7V Li-Polymer Replacement Battery (AHB5-2229PS)

This 3.7V, 250mAh lithium-polymer cell replaces the OEM pack in the Jabra Pro 900, Pro 920, Pro 923, and Pro 930 DECT wireless headsets. It matches the original cell dimensions at 31.50 × 20.00 × 5.00mm and connects directly to the existing BMS board. Fit the replacement when the headset no longer holds a charge through a standard call shift.

  • Pro 900 series compatibility: The Pro 920, 923, and 930 share the same compact headset housing and BMS connector as the base Pro 900. All variants draw from the same 3.7V rail under combined DECT radio and audio load, so one cell covers the full lineup.
  • Bench tested on actual hardware: We cycled this cell through repeated DECT radio-active sessions on the Pro 900 platform. The BMS completed handshake with the base station on first dock and held the voltage curve within spec across the load profile of sustained audio plus radio transmission.
  • First charge after fitting: Seat the headset in the base station and let it complete one full uninterrupted charge cycle before taking a call. The base station needs to log the new cell's charge state before its talk-time estimate will read accurately.

Base station showing a charging error after fitting the new pack

The Pro 900 base runs a BMS handshake when a headset is docked. If the cell arrives at storage voltage — typically around 3.6V — the base may flag a charge fault or show a solid amber indicator rather than cycling through its normal charge sequence. Remove the headset, leave it docked for 30 seconds, then re-seat it. This resets the handshake and allows the base to begin a fresh charge cycle from the correct starting voltage.

Headset cutting out mid-call even though the base showed a full charge

The Pro 900 combines DECT radio transmission and audio driver load simultaneously. Under that combined draw, a cell that has not yet completed its first full conditioning cycle can dip below the BMS cutoff threshold and shut the headset off. This is not a fault — it resolves over three to five complete charge-discharge cycles as the cell reaches its rated 250mAh capacity. If cutouts continue after five cycles, check that the charge contacts on the base are clean and making firm contact.

Compatible Models

Pro 900 Pro 920 Pro 923 Pro 930 Pro 935

Replaces Part Numbers

AHB5-2229PS

Technical Specifications

Voltage3.7V
Amp Hours250mAh
Capacity250mAh
Rate0.93Wh
Net Weight6g /0.21 oz
Gross Weight31g /1.09 oz
Approximate Weight31g /1.09 oz
Dimension 31.50 x 20.00 x 5.00mm

Product Highlights

  • Brand: Jabra
  • 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 Jabra Pro 900 base shows a full charge but the headset cuts off after a few minutes on the first call — is the battery faulty?

The cell likely arrived at storage voltage and has not yet completed a full conditioning cycle. Under the combined DECT radio and audio draw of the Pro 900, a partially conditioned cell drops below the BMS cutoff threshold before the charge indicator catches up. Dock the headset and let it complete three to five full uninterrupted charge cycles. Talk time improves with each cycle as the cell approaches its rated 250mAh capacity.

The headset gets noticeably warm near the battery compartment during long calls — is that normal for this cell?

Yes, within limits. The Pro 900 housing is compact, and sustaining simultaneous DECT radio output and audio driver load in that small space generates heat at the cell. Warmth to the touch is expected during extended sessions. If the headset becomes hot enough to cause discomfort or shuts off due to heat, check that the base station charging contacts are clean — a poor contact forces the BMS to work harder on each cycle and increases heat output.

My Pro 900 headset cuts out mid-call on the new battery, but powering off and back on restores the connection — what's happening?

This is voltage sag under peak DECT transmission load. When the radio bursts at maximum output — typically during range extension or a weak DECT signal — current draw spikes and the cell voltage momentarily dips below the BMS cutoff. Moving the headset closer to the base reduces the radio output demand and the sag. If it persists at close range, complete at least three full charge-discharge cycles first to confirm the cell is fully conditioned before diagnosing a hardware fault.

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