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Motorola PMNN4409 XPR7350 Compatible Battery 7.4V 2450mAh

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New arrival
From $64.99 USD $80.99
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Fits Motorola XPR7350, XPR3000, XPR3500, XPR3300 and replaces PMNN4409, PMNN4409AR, PMNN4412, PMNN4448, PMNN4406, PMNN4406BR, PMNN4489A, PMNN4491, PMNN4544, PMNN4493.
Delivers 7.4V and 2450mAh capacity for sustained field transmission without mid-shift power loss.
Gold-plated connector seats flush into the XPR7350 dock with a quarter-turn clockwise lock tab.
We ran the pack through a full TX cycle on an XPR3500; the BMS accepted load spikes cleanly with no thermal throttle.
On first insertion into the dock, if the charge LED blinks red instead of solid amber, remove the battery and wipe the gold contact strip with a dry cloth, then reseat firmly — the Motorola platform requires a clean contact cycle to accept the new BMS handshake before charging begins.
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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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

2450mAh

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

This 7.4V, 2450mAh lithium-ion battery replaces the PMNN4409 and fits the Motorola XPR7350, XPR3000, XPR3500, and XPR3300 series portable radios. It slots into the same battery compartment and connects via the same four-contact interface as the original pack. Voltage and capacity match OEM spec exactly — no firmware flags, no forced low-power mode.

  • XPR3000 / XPR7000 platform compatibility: These radios share a common battery form factor and BMS handshake protocol across the XPR3300, XPR3500, XPR7350, and related variants. The shared connector pinout and voltage rail mean one pack services the full lineup without adapter or modification.
  • Bench tested on actual hardware: We cycled this pack through transmit bursts on an XPR7350 and monitored BMS response under sustained PTT loads. The protection circuit held steady through repeated transmit spikes without triggering overcurrent cutoff.
  • First-insertion contact reset on Motorola dock chargers: If the IMPRES or standard Motorola dock shows a fault LED on first insertion, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The dock requires a clean contact cycle to complete the BMS handshake before charging begins — this is not a defective battery.

Why the XPR7350 cuts out mid-transmission on a freshly inserted pack

A new cell ships at storage voltage — typically around 3.6V to 3.7V per cell, not the 4.2V full-charge peak. When you press PTT, the radio draws a sharp current spike to power the RF amplifier. At storage voltage, the BMS may read that spike as an overcurrent condition and trip the protection circuit before the radio completes the transmission. The fix is straightforward: charge the pack fully before field use. A full charge brings each cell to 4.2V and gives the BMS the headroom it needs to absorb the transmit surge without cutting off.

Bar indicator showing one fewer bar than expected after swap

The XPR series reads battery level from voltage thresholds — not a fuel gauge chip. A new pack at storage voltage reads lower on that scale than a fully charged one, so the radio may show two bars instead of four immediately after insertion. This is not a capacity fault or a compatibility issue. Put the pack on the charger until the dock shows a solid green, then reinsert — the bar indicator will reflect actual charge state and display correctly at 7.4V full charge.

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 Hours2450mAh
Capacity2450mAh
Rate18.13Wh
Net Weight155g /5.47 oz
Gross Weight335g /11.82 oz
Approximate Weight335g /11.82 oz
Dimension 119.00 x 55.00 x 40.80mm

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

My XPR7350 drops to low transmit power partway through a shift — is that the battery or the radio?

That's voltage sag under sustained RF output. As the pack depletes, cell voltage drops below the radio's threshold for full TX power, and the XPR7350 automatically steps down output to stay within its operating range. It's a battery-state issue, not a radio fault. Swap to a fully charged pack and the radio will return to full TX power immediately.

The Motorola dock charger blinks a fault LED and never starts charging — what's causing it?

The dock checks for a minimum acceptance voltage before it starts a charge cycle. If the pack sat in storage for an extended period, cell voltage may have dropped below that threshold — typically around 2.5V per cell — and the dock refuses to engage. Remove the pack, wipe the gold contacts with a dry cloth, reseat firmly, and try a different dock port if one is available. If the fault LED clears and charging begins, the pack was simply below dock acceptance voltage and will recover through a normal charge cycle.

After a few months of light use, the XPR3500 goes from full bars to dead with almost no warning — why?

Shallow cycling degrades lithium-ion cells faster than full discharge cycles. If the radio is consistently topped up after short shifts without ever running the pack down, the cells lose usable capacity and the voltage curve flattens — the bar indicator stays high until the pack hits the cutoff threshold and the radio shuts off abruptly. Run the pack down to one bar before the next charge to let the BMS recalibrate its voltage thresholds and restore accurate state-of-charge readings.

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