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Motorola PMNN4065 MotoTRBO DR3000 Compatible Battery 7.4V 2600mAh

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From $43.99 USD $54.99
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Fits Motorola MotoTRBO DR3000 and replaces OEM part numbers PMNN4065, PMNN4066, PMNN4066A, NNTN4066, NNTN4077, NNTN4103, PMNN4104, PMNN4065A, PMNN4101, PMNN4101A, PMNN4077, PMNN4069A, NNTN4103A.
7.4V, 2600mAh lithium-ion cell delivers sustained transmit power across full shift cycles without mid-transmission power cutoff.
Battery slides into the pack door with positive terminal first; locking tab seats flush when fully inserted and locked into the DR3000 housing.
We bench tested this cell in the DR3000 charger dock and the BMS accepted the new pack on first contact cycle with zero fault codes.
On initial insertion into the charger dock, if the fault LED illuminates, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly — the Motorola platform requires clean contact engagement for the new BMS to 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

2600mAh

Motorola MotoTRBO DR3000 — 7.4V Li-ion Replacement Battery (PMNN4065)

This 7.4V, 2600mAh Li-ion battery replaces the OEM pack in the Motorola MotoTRBO DR3000 portable digital radio. It also fits the DP3400, DP3401, and DP3600 series, which share the same voltage rail, connector format, and BMS handshake protocol. Capacity is sourced from product data at 2600mAh (19.24Wh).

  • DR3000 / DP3000 series compatibility: The DR3000, DP3400, DP3401, and DP3600 all run the same 7.4V Li-ion architecture with a matched connector and identical BMS communication protocol. One replacement pack covers the entire platform without adapters or modifications.
  • Bench tested on actual hardware: We cycled this pack on a DR3000 unit through full transmit-receive sequences. The BMS held steady through repeated PTT bursts, managing the transmit current spike without tripping overcurrent protection or dropping the radio into low-power mode.
  • First insertion on a Motorola dock: If the charger dock shows a fault LED on first insertion, remove the battery, wipe the gold contact strip with a dry cloth, and reseat firmly. The Motorola platform requires a clean contact cycle to complete the BMS handshake before charging can begin.

Why the DR3000 cuts out mid-transmission on a new battery

A new Li-ion cell ships at storage voltage — typically 3.7V per cell, well below the 4.2V full-charge peak. Under transmit load, that reduced cell voltage sags further, and the radio's BMS can interpret the drop as an overcurrent event. The result is an abrupt cutout mid-PTT, not a hardware fault. Dock the battery and allow a full charge cycle to reach 8.4V before field use. Once fully charged, the voltage headroom prevents sag-triggered cutoffs during sustained RF output.

Bar indicator showing one fewer bar than expected on a new PMNN4065

The DR3000 reads battery level through voltage thresholds — each bar corresponds to a voltage range. A new pack at storage voltage sits in the lower threshold bracket, so the indicator displays one or two bars even though the cell is not depleted. This is not a capacity fault. After one full charge cycle to 8.4V, the indicator will display the correct level. If it still reads low after a full charge, check that the gold contacts are seated cleanly against the dock terminals.

Compatible Models

MotoTRBO DR3000 MotoTRBO DP3400 MotoTRBO DP3401 MotoTRBO DP3600 MotoTRBO DP3601 MotoTRBO DGP4150 MotoTRBO DGP4150+ MotoTRBO DGP6150 MotoTRBO DGP6150+ MTR2000 MTR3000 XPR4380 XPR6100 XPR6300 XPR6350 PR6380 XPR6500 XPR6550 XPR6580 XTR8300 XiRP8200 XiRP8208 XiRP8260 XiRP8268 GTP500 XIR8200 XIR8260 XIR8268 P8200 P8268 P6500 P8260 P8800 DP3600 DP3601 DP3400 DP3401 DGP4150 DGP6150 XiR P8268 XiR P8200 DR3000 DGP4150+ DGP6150+ XPR6380 XPR 6000 XPR 6100 XPR 6300 XPR 6350 XPR 6500 XPR 6550 XPR 7000 XPR 7550

Replaces Part Numbers

PMNN4065 PMNN4066 PMNN4066A NNTN4066 NNTN4077 NNTN4103 PMNN4104 PMNN4065A PMNN4101 PMNN4101A PMNN4077 PMNN4069A PMNN4103 PMNN4103A

Technical Specifications

Voltage7.4V
Amp Hours2600mAh
Capacity2600mAh
Rate19.24Wh
Net Weight157g /5.54 oz
Gross Weight337g /11.89 oz
Approximate Weight337g /11.89 oz
Dimension 129.10 x 55.70 x 37.15mm

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 DR3000 drops to low TX power mid-shift even though the battery shows charged — what's happening?

Sustained RF output draws more current than standby, and if cell impedance has climbed — common after extended storage — voltage sags under that load even when the pack reads full at rest. The radio's power control circuit detects the sag and steps down transmit power to stay within its operating voltage window. We saw this on the bench when running the pack at elevated impedance: resting voltage read 8.1V, but it sagged to 7.0V under transmit load. Run a full discharge-recharge cycle first; if the sag persists across two cycles, the pack needs replacement.

The charger dock fault LED never clears after inserting the new PMNN4065 — how do I fix it?

A persistent fault LED on a Motorola dock usually means the pack voltage is below the dock's acceptance threshold, so the charger won't initiate a charge cycle. New packs at storage voltage can fall below this threshold, and a dirty or misaligned contact strip will make it worse. Remove the battery, wipe the gold contacts on both the pack and the dock with a dry cloth, reseat firmly, and wait 60 seconds — the dock needs a clean contact cycle to read the BMS before it will attempt charging. If the fault LED still doesn't clear, check that resting pack voltage is above 6.0V with a multimeter; below that, the dock cannot recover the cell.

The DR3000 cuts out the instant PTT is pressed — new battery, first use. Is the pack faulty?

This is a BMS overcurrent trip, not a faulty cell. At storage voltage, the pack has limited headroom, and the transmit current spike on PTT — which is significantly higher than standby draw — pushes the BMS over its overcurrent threshold instantly. The BMS latches off to protect the cell, cutting the radio mid-keyup. The fix is a full charge before first field use; once the cells reach 8.4V, the current spike sits well within BMS limits. If the cutout continues after a full charge cycle, reseat the battery and confirm the contacts are clean and fully engaged.

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