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Motorola APX7000 NTN7034 7.4V Replacement Battery 5000mAh

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From $76.99 USD $94.99
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Replaces Motorola APX7000 and APX6000 models; OEM part numbers NTN7034, PMNN4487A, NNTN7034A, NNTN7034B, NNTN7038, NNTN7038A, NNTN7038B, PMMN4403, NNTN8921, NNTN8921A, NNTN8921B, NNTN8921C, PMNN4486A, PMNN4486, NNTN7035, NNTN7035A.
This 7.4V, 5000mAh Li-ion cell delivers 37Wh for sustained field operations on APX platform radios.
Connector seats into standard Motorola battery slot with keyed orientation; locking tab engages flush against radio housing.
We bench-tested this pack with APX7000 at full PTT cycles; BMS accepted the charging handshake without fault LED on first insertion.
If the charger dock shows a fault light after inserting this battery, remove it, wipe the gold contact strip with a dry cloth, and reseat firmly — the Motorola platform needs a clean contact cycle to accept the new BMS handshake before charging begins.
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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

5000mAh

Motorola APX7000 / APX6000 Series — 7.4V Li-ion Replacement Battery (NTN7034)

This 7.4V, 5000mAh (37Wh) Li-ion pack replaces the OEM battery in Motorola APX7000, APX7000XE P25, APX6000, and APX6000XE P25 portable radios, along with nine additional APX-platform models. It uses the same contact pinout and BMS communication protocol as the original Motorola pack. Replacement OEM part numbers covered include NTN7034, NNTN7034A/B, PMNN4487A, NNTN7038, NNTN8921 series, PMNN4486, NNTN7035, and PMMN4403.

  • APX platform compatibility: The APX6000 and APX7000 families share a common battery bay geometry, contact strip layout, and BMS handshake voltage. Both run a 7.4V nominal rail, so a single pack covers both series without adapter or modification.
  • Bench tested on actual hardware: We cycled this pack in an APX7000 dock and confirmed the BMS completed the full charge handshake without fault LED. Under simulated PTT transmit loads, the voltage rail held stable and the radio maintained full TX power throughout the draw cycle.
  • First-insertion contact check: If the dock shows a fault LED on first seating, remove the pack and wipe the gold contact strip with a dry cloth. Reseat firmly. The APX platform requires a clean contact surface to complete the initial BMS negotiation before charging starts.

Why the APX7000 cuts out mid-transmission on a brand-new battery

New Li-ion cells ship at storage voltage — typically 3.6–3.7V per cell, not full charge. When the APX7000 transmits, it pulls a surge of current that the BMS may interpret as an overcurrent event if the cell voltage is already at the low end of the storage window. The BMS responds with a momentary cutoff, which kills the transmission. A full charge cycle before field use brings both cells to 4.2V each, giving the BMS enough headroom to absorb the TX current spike cleanly.

Bar indicator showing one fewer bar than expected after installing a new pack

The APX series uses voltage-threshold bar indicators, not a fuel-gauge chip. At storage voltage, the radio reads the pack as partially discharged and displays fewer bars accordingly. This is not a fault with the battery. Charge the pack fully in the dock until the charger LED goes solid green, then reinsert — the bar indicator will update to reflect the actual cell voltage of approximately 8.4V at full charge.

Compatible Models

APX7000 APX7000XE P25 APX6000 APX6000XE P25 APX6000 P25 APX8000 APX6000XE SRX2200 APX 6000 APX7000XE Apx 5000 Apx5000 APX8000XE

Replaces Part Numbers

NTN7034 PMNN4487A NNTN7034A NNTN7034B NNTN7038 NNTN7038A NNTN7038B PMMN4403 NNTN8921 NNTN8921A NNTN8921B NNTN8921C PMNN4486A PMNN4486 NNTN7035 NNTN7035A

Technical Specifications

Voltage7.4V
Amp Hours5000mAh
Capacity5000mAh
Rate37Wh
Net Weight227g /8.01 oz
Gross Weight407g /14.36 oz
Approximate Weight407g /14.36 oz
Dimension 136.40 x 59.70 x 42.00mm

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

My APX7000 drops to reduced TX power partway through a shift — is the new battery sagging?

Voltage sag under sustained RF output is a real failure mode on the APX platform. During extended transmit cycles, a cell with elevated internal impedance drops below the radio's minimum voltage threshold, and the APX7000 steps down TX power to stay within that window. We bench-tested this pack under continuous PTT loads and saw no sag-triggered power reduction. If you're seeing it, fully charge the pack first — a cell at storage voltage sags faster; a full 8.4V charge gives the headroom the radio needs.

The dock fault LED blinks continuously and never clears after I insert the new pack — what's happening?

The APX charger dock checks for a minimum acceptance voltage before it begins a charge cycle. If the pack has been sitting in a warehouse for months, cell voltage may have drifted below the dock's acceptance threshold, and the dock locks out rather than charging. Remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. If the fault LED persists, the cells need a recovery charge — connect the pack to a compatible external Li-ion charger set to 7.4V nominal, bring it above 7.0V, then return it to the dock.

The radio powers on fine but shuts off instantly the moment I press PTT — what causes that?

This is a BMS overcurrent trip, not a radio fault. The APX7000 draws a sharp current spike at the moment of PTT keying, and a BMS protecting cells that are cold or at low state of charge will cut the output in under a second. The fix is a full charge cycle before use — cells at 4.2V each handle the transmit spike without triggering the overcurrent threshold. If the cutoff persists after a full charge, check that the contact strip is clean and making solid contact across all pins.

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