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ENL-MOT4003 best long range two way radio battery for GP328

enpower P/N:ENL-MOT4003

oem battery:HNN4003

Part Number:

Manufacturer (OEM):

oem model:

chemistry:Li-ion

voltge:7.4V

capacity:2600mAh

Voltage/Capacity:

Demension (H*W*D)(cm):12.36*5.87*2.52

compatible radio:GP328 GP338 GP340 PTX760 ATS2500 HT750 HT1250 HT1250LS HT1550XLS GP140 GP240 GP280 GP320 GP330 GP340 GP329 GP339 GP360 GP380 GP540 GP580 GP680 GP1280 MTX850 MTX850LS MT8250LS MTX450 MTX900 MTX9250 MTX950 MTX960 PR860 PRO5150 PRO5350 PRO5450 PRO5550 PRO5750 PRO7150 PRO7350 PRO7750 PRO9150 PTX700 PTX780

Description:

compatible models:

PRODUCT INFORMATION

ENL-MOT4003 7.4V 2600mAh Li-ion Two-way Radio Battery HNN4003 for Motorola GP328 GP340 Walkie Talkie | Enpower

ENL-MOT4003 7.4V 2600mAh Li-ion Rechargeable Battery for Motorola GP328 / GP340 Two-way Radio

Enpower ENL-MOT4003 high-capacity lithium-ion rechargeable battery engineered as a faithful OEM-spec replacement power supply for Motorola OEM battery HNN4003. Fully compatible with the Motorola GP328 / GP338 / GP340 professional portable series and the wider Waris-platform family including HT750 / HT1250, MTX850 / MTX950, PRO5150 / PRO7150 / PRO9150 and PTX700 / PTX780 — the proven analog workhorse platform still serving security patrols, public safety, facilities management, warehousing, manufacturing and commercial field communication fleets worldwide. Built around premium high quality long-cycle Li-ion cells with stable 7.4V nominal voltage and 2600mAh capacity — the highest capacity in this battery family — a high impact ABS/PC composite shell and brass golden plated low-resistance contacts. A built-in BMS delivers over charge, over discharge, over current, temperature and reverse polarity protection, while Li-ion chemistry keeps the pack light, memory-effect free and ready for 11-13 hour shifts. Manufactured in Guangdong China with 12-month full quality warranty.

Basic Product Information

Brand
Enpower
Model No.
ENL-MOT4003
Applicable Equipment
Two-way Radio / Walkie Talkie
Matching OEM Models
HNN4003
Battery Type
Li-ion (Lithium-ion)
Nominal Voltage
7.4V
Nominal Capacity
2600mAh
Overall Size (H*W*D)
12.36*5.87*2.52 cm
Weight
240g
Color
Black
Shell Material
High Impact ABS/PC
Contact Material
Brass Golden Plated
Cell Quality
High Quality Long Cycle Li-ion Cells
Protective Function
Over Current Protection + Temperature Sensor + Reverse Polarity Protection (BMS)
Application
Consumer Electronics / Two-way Radio
Quality Control
100% Aging Testing
Place of Origin
Guangdong, China
OEM / ODM
Available
Warranty Period
12 Months

Compatible Radio Models

The ENL-MOT4003 replacement battery is fully compatible with the following Motorola two-way radio models:

GP328 GP338 GP340 PTX760 ATS2500 HT750 HT1250 HT1250LS HT1550XLS GP140 GP240 GP280 GP320 GP330 GP329 GP339 GP360 GP380 GP540 GP580 GP680 GP1280 MTX850 MTX850LS MT8250LS MTX450 MTX900 MTX9250 MTX950 MTX960 PR860 PRO5150 PRO5350 PRO5450 PRO5550 PRO5750 PRO7150 PRO7350 PRO7750 PRO9150 PTX700 PTX780

Product Description & Core Advantages

✅ One Battery for the Entire GP328 / GP340 Professional Fleet
Direct replacement for Motorola OEM battery HNN4003, covering 42 radio models across the GP / HT / MTX / PRO / PTX professional series — one battery standard that unifies mixed analog fleets, simplifies spare-parts inventory and charging management. Plug-and-play fit, no modification required.

✅ 2600mAh Highest-Capacity Li-ion for Long Shifts
Premium high quality long-cycle Li-ion cells deliver stable 7.4V output and 2600mAh capacity — enough for 11-13 hours of operation under standard analog duty cycles (5-5-90). Li-ion chemistry is significantly lighter than Ni-CD / Ni-MH alternatives, has no memory effect, and supports 800+ full charge/discharge cycles with minimal capacity fade.

✅ BMS Protection & Rugged Housing
A built-in Battery Management System guards against over charge, over discharge, over current, over temperature and reverse polarity — protecting both the battery and your radio investment. Robust high-impact ABS/PC composite housing and brass golden plated low-resistance contacts — anti-drop, dustproof and moisture resistant. The 12.36*5.87*2.52cm form factor faithfully follows the original HNN4003 battery dimensions for a balanced, secure fit on the radio chassis.

  • ⭐ OEM HNN4003 Replacement — Faithfully matches original dimensions (12.36*5.87*2.52cm), drop-in fit for GP328 / GP338 / GP340 and 39 more professional models without modification
  • ⭐ 42-Model Coverage — One pack serves GP / HT / MTX / PRO / PTX mixed fleets, the ideal single-SKU solution for unified battery management
  • ⭐ 2600mAh Long-Shift Runtime — The highest capacity in this family: 11-13 hours per shift, roughly 2x the runtime of the original lower-capacity packs
  • ⭐ Lightweight, Memory-Free Li-ion — 240g with no memory effect; recharge at any state of charge without capacity loss
  • ⭐ Industrial Craftsmanship & Warranty — Brass golden plated contacts, 100% aging tested before shipment, OEM private label available, 12-month full quality warranty

Related Two-way Radio Batteries

Safety Cautions

  • ⚠ Do not disassemble, puncture, crush or modify the battery housing — internal cell damage may cause electrolyte leakage, overheating or fire. Stop using the battery immediately if you notice swelling, unusual heat, odor or deformation, and move it to a safe non-flammable area away from combustibles.

  • ⚠ Keep battery terminals away from metal objects such as coins, keys and jewelry to prevent accidental short-circuit. Do not expose the battery to high temperature above 60 degrees C, direct sunlight or open flame for extended periods.

  • ⚠ Only charge with a Li-ion compatible charger using CC/CV (constant current / constant voltage) logic rated at 8.4V for 7.4V packs — including your existing Motorola GP-series Li-ion charger. Do NOT use a Ni-CD / Ni-MH charger on this Li-ion battery — the charging logic is completely different and may cause overheating, swelling or permanent damage.

  • ⚠ Store the battery in a cool dry place with 40-60% state of charge for long-term storage, and recharge every 3 months to prevent deep discharge damage. Dispose of spent packs at an authorized battery recycling collection point in compliance with local regulations — do not put them in household waste.

Frequently Asked Questions

Q1: Is ENL-MOT4003 fully compatible with OEM HNN4003 and the Motorola GP328 / GP340 radios?-
A: Yes. ENL-MOT4003 is a faithful OEM replacement for Motorola HNN4003, with identical 12.36*5.87*2.52cm housing dimensions and a plug-and-play fit for the GP328 / GP338 / GP340 professional series and the wider GP / HT / MTX / PRO / PTX family — 42 models in total. No modification required.
Q2: How long does the 2600mAh Li-ion pack last on a single charge, and does it work with my existing charger?+
A: Under standard analog duty cycles (5-5-90), the 2600mAh capacity delivers approximately 11-13 hours of operation — roughly double the runtime of original lower-capacity packs. It works with Li-ion chargers using CC/CV 8.4V logic (including your existing Motorola Li-ion charger for HNN4003-type packs). It must NOT be charged on Ni-CD / Ni-MH chargers — the charging logic is completely different and unsafe for Li-ion chemistry.
Q3: What protections does the built-in BMS provide?+
A: The pack integrates a Battery Management System covering over current protection, charging temperature sensing and reverse polarity protection, together with Li-ion cell-level over charge and over discharge cutoffs. This multi-layer protection safeguards both the battery and your radio during daily fleet operations, deep discharge events and charger faults.
Q4: Will ENL-MOT4003 also fit GP300, GP-350, XTS, APX or XPR / DP series models?+
A: No. ENL-MOT4003 (replacement for OEM HNN4003) is designed ONLY for the GP328 / GP340 professional family listed above. Other Motorola generations use different battery families: the GP300/GP88/GTX/GP600/MTX638 legacy series uses HNN9628, the GP-350 uses HNN9360, the P1225 uses HNN9049, the XTS1500/XTS2500/MT1500/PR1500 P25 series uses NTN9815/NTN9858/NNTN7335, the APX2000/4000 series uses NNTN8128A/NNTN8129, and the MOTOTRBO XPR/DP digital series uses the PMNN4407/PMNN4418 families — housing dimensions, contact arrangement and locking mechanism are NOT interchangeable across these families. The same applies across brands: Motorola packs do not fit ICOM, KENWOOD or Hytera radios and vice versa. Always check the OEM battery part number printed on your existing battery before ordering.
Q5: Do you support OEM custom labeling or bulk quantity orders?+
A: Yes, we accept OEM and ODM orders. Custom shell printing, private label, capacity variants and connector customization are all available for bulk quantity. Standard stock orders ship within 3-7 working days; OEM customized orders typically take 15-25 days lead time. Contact our sales team for exact quotation and MOQ.

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