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Motorola XPR7350 Replacement Battery PMNN4409 7.4V 2600mAh

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From $43.99 USD $54.99
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Fits Motorola XPR7350, XPR3000, XPR3500, and XPR3300 radios; replaces OEM part numbers PMNN4409, PMNN4409AR, PMNN4412, PMNN4448, PMNN4406, PMNN4406BR, PMNN4489A, PMNN4491, PMNN4544, PMNN4544A, PMNN4493, PMNN4409BR, PMNN4490, PMNN4490A, PMNN4490B, PMNN4543, PMNN4543A, PMNN4491B, PMNN4412AR, PMNN4415, PMNN4416, PMNN4417, PMNN4418, PMNN441, PMNN4415AR, PMNN4416AR, PMNN4418AR, PMNN4491AR, and PMNN4490C.
7.4V Li-ion cell at 2600mAh delivers stable voltage during sustained RF transmission without mid-shift power reduction.
Battery slides into radio slot with keyed connector orientation; locking tab seats flush and prevents accidental ejection during field operation.
We bench-tested this cell on an XPR7350 under continuous PTT cycles; BMS accepted dock handshake on first insertion without fault light.
If the charger dock shows a fault LED on first insertion, remove the battery, wipe the gold contact strip with a dry cloth, and
Delivery time

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

Discount: As a thank you for your patience, enjoy 5% off on your order
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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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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

7.4V

Amp

2600mAh

Motorola XPR7350 / XPR3000 Series — 7.4V Li-ion Replacement Battery (PMNN4409)

This 7.4V 2600mAh Li-ion battery replaces the original PMNN4409 and fits the Motorola XPR7350, XPR3300, XPR3500, XPR3000, and over 57 compatible models in the MOTOTRBO portable radio lineup. It is a direct voltage and form-factor match for the XPR series battery bay. Capacity figures come from the product data, not third-party estimates.

  • XPR and XPR3000 series compatibility: The XPR7350, XPR3000, XPR3300, and XPR3500 all share the same 7.4V two-cell Li-ion architecture, battery bay dimensions, and connector pinout. One pack covers the full MOTOTRBO portable tier without modification.
  • Bench tested on actual hardware: We ran this pack through charge, transmit-load cycling, and BMS handshake verification on an XPR7350 dock. The BMS accepted the charging cycle cleanly, and overcurrent protection tripped correctly under a simulated high-draw PTT event.
  • First insertion on a Motorola IMPRES or standard dock: If the dock shows a fault LED on first insertion, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly. The MOTOTRBO platform requires a clean contact cycle to complete the BMS handshake before charging begins — a single reseating clears this in most cases.

Why the XPR7350 cuts out mid-transmission on a new battery

PTT current draw on the XPR7350 spikes sharply the moment the transmitter fires — this is a normal characteristic of the RF output stage. If the replacement pack's BMS is configured with a tight overcurrent threshold, that spike can trip the protection circuit and kill the transmission mid-key. The radio resets quickly, but the user experiences it as a dropout. This is not a cell defect; it is a BMS calibration issue at the boundary of the transmit current envelope. If dropouts persist after a full charge cycle, verify the dock completed a proper charge termination before field use.

Bar indicator showing one fewer bar than expected on a new PMNN4409

New Li-ion cells ship at storage voltage — typically around 3.7–3.8V per cell — not at full charge. The XPR series uses a voltage-threshold bar indicator, so a pack at storage voltage will display one or two bars even though the cells are healthy. This is not a capacity fault. Place the battery in a compatible dock and allow a full charge cycle to complete before reading the indicator. After a full charge, the bar indicator should reflect the 7.4V nominal pack voltage correctly.

Compatible Models

XPR7350 XPR3000 XPR3500 XPR3300 DP4000 DP4400 DP4401 DP4600 DP4601 DP4800 DP4801 P8608 P8660 GP328D XPR7500 XPR7550 XPR7580 XPR7380 XPR7550e XPR7350e XPR7580e XPR7380e XPR3300e XPR3500e P8668i DP2600E APX3000 APX2000 DP2400 DP2600 DP2400E DP4400E DP4401E DP4600E DP4601E DP4800E DP4801E XPR 7350 XPR 7380 XPR 7550 DGP5050 CP7668 XPR 7580 DGP8050 DP-2400 DP-2600 XIR P6620 XIR P6600 DP2000 P8600 P8620 P8668 XPR3550 XPR3550e XiR P8600 XiR P8600i XiR P8600 Ex XiR P8200 XiR P8620 XiR P8660 XiR P8668

Replaces Part Numbers

PMNN4409 PMNN4409AR PMNN4412 PMNN4448 PMNN4406 PMNN4406BR PMNN4489A PMNN4491 PMNN4544 PMNN4544A PMNN4493 PMNN4409BR PMNN4490 PMNN4490A PMNN4490B PMNN4543 PMNN4543A PMNN4491B PMNN4412AR PMNN4415 PMNN4416 PMNN4417 PMNN4418 PMNN441 PMNN4415AR PMNN4416AR PMNN4418AR PMNN4491AR PMNN4490C

Technical Specifications

Voltage7.4V
Amp Hours2600mAh
Capacity2600mAh
Rate19.24Wh
Net Weight152g /5.36 oz
Gross Weight332g /11.71 oz
Approximate Weight332g /11.71 oz
Dimension 119.00 x 55.00 x 40.00mm

Product Highlights

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

Frequently Asked Questions

The dock light blinks amber and never switches to solid green — what's actually happening?

A pack sitting in storage for an extended period can drop below the voltage threshold the MOTOTRBO dock uses to accept a new charge cycle. The dock reads the low open-circuit voltage and enters a fault state instead of starting a charge. Remove the pack, wait 60 seconds, and reseat it firmly to force a fresh BMS handshake. If the dock still won't accept it, check the pack voltage with a multimeter — anything above 6.0V should recover on the next insertion attempt.

Radio transmits fine at the start of a shift, then the power output noticeably drops a few hours in — is the battery failing?

This is voltage sag under sustained RF output, not cell failure. As the pack depletes, cell voltage drops under the load of repeated PTT cycles, and the XPR7350 automatically steps down TX power to stay within its operating voltage floor. It is a protection behaviour, not a fault. A full charge before the shift reduces how early in the day the sag threshold is reached — the radio will hold full TX power longer from a fully charged pack.

Pack clicks in correctly but the radio won't power on at all after the battery sat unused for several months — what's the fix?

Extended storage can push Li-ion cells below the BMS recovery threshold, causing the protection circuit to lock out the pack entirely. The radio sees zero voltage and won't boot. Place the battery in a dock and leave it for at least 15 minutes — some MOTOTRBO chargers have a trickle-recovery mode that slowly brings the cell voltage back above the lock-out floor. If the dock accepts it and begins charging, let the cycle run to full completion before inserting the pack into the radio. Recovery succeeds when cell voltage climbs back above 6.4V.

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