Overview
The Motorola EPNN7994A is a Class 2 AC/DC power supply designed for Motorola radio chargers and battery charging bases. Delivering 16VDC output at 900mA, this adapter is the OEM replacement for multiple Motorola portable radio models. Part numbers 481609OO3NT and 2504548T14 are interchangeable designations for this unit. This lot includes three new units, each fully factory sealed.
Key Features
- Output: 16VDC @ 900mA (14.4W maximum)
- Input: 110VAC, 50–60Hz worldwide compatible
- Class 2 certified transformer power supply
- Black enclosure with coiled power cable
- OEM Motorola part—genuine replacement quality
- Lot of three units—new in box condition
Technical Specifications
- Output Voltage: 16VDC
- Output Current: 900mA (0.9A)
- Output Power: 14.4W
- Input Voltage: 110VAC 50–60Hz
- Safety Certification: Class 2 Transformer
- Connector Type: Proprietary Motorola (barrel-style)
- Cable Length: Coiled, 5 feet approximate
- Enclosure: Black plastic
- Manufacturer: Motorola
- Qty in Lot: 3 units
Typical Applications
The Motorola EPNN7994A is used to power and charge Motorola portable two-way radio battery bases and desktop chargers. Common deployments include commercial radio networks, public safety communications systems, warehouse and logistics operations, and enterprise mobile radio solutions where multiple charging stations require simultaneous operation.
Compatibility & Replacements
Compatible With
- Motorola CP150 portable radio
- Motorola CP200 portable radio
- Motorola PR400 portable radio
- Motorola CR400 portable radio
- Motorola EP450 portable radio
- Motorola HT750 portable radio
- Motorola HT1250 portable radio
- Motorola HT1250 LS+ portable radio
- Motorola HT1550 portable radio
- Motorola HT1550 XLS portable radio
- Motorola HTN9000C portable radio
- Motorola MTX950 portable radio
- Motorola MT2000 portable radio
- Motorola GP320 portable radio
- Motorola GP340 portable radio
- Motorola GP360 portable radio
- Motorola GP380 portable radio
- Motorola GP1200 portable radio
- Motorola JT1000 portable radio
- Motorola XTS3000 portable radio
- Motorola battery charger bases and desktop charging cradles
Replaces / Drop-In Replacement For
- Motorola 481609OO3NT (equivalent part number)
- Motorola 481609003NT (variant designation)
- Motorola 2504548T14 (secondary part number)
Works With
- Motorola VHF and UHF portable radio platforms
- DMR digital mobile radio compatible models
- P25 Phase 1 and Phase 2 compliant radios
- MOTOTRBO series radios (legacy charger compatibility)
- Standard 110–240VAC input (worldwide mains)





