PowerMax PM3-75LK 12V 75 Amp RV Power Converter
3-Stage Smart Battery Charger | AC-DC Converter | Lithium & Lead-Acid Compatible
Product Overview
The PowerMax PM3-75LK is a high-performance 110V AC to 12V DC converter and smart battery charger, designed for RVs, trailers, boats, automotive, and off-grid applications. It delivers stable 75-amp continuous power with advanced 3-stage charging to safely maintain all battery types.
Built-in thermal-controlled fan, reverse polarity protection, and durable construction ensure reliable operation in all conditions. Perfect for replacing old converters or upgrading your power system.
Key Features
75 Amp Continuous Power
Provides 75A steady 12V DC output (900W) for RV appliances, lighting, pumps, and battery charging.
3-Stage Smart Charging
Bulk → Absorption → Float modes automatically optimize charging for lithium, AGM, gel & lead-acid batteries.
Universal 110V AC Input
Standard 110/120V AC (60Hz) input, designed for US RVs, campers, and domestic power sources.
Thermal Smart Fan
Temperature-controlled quiet cooling fan activates automatically to prevent overheating.
Full Safety Protection
Reverse polarity, over-current, over-voltage, short-circuit, and thermal overload protection.
Durable & Compact
Heavy-duty construction, compact size, easy drop-in replacement for most RV converters.
Technical Specifications
| Parameter | Details |
|---|---|
| Model Number | PM3-75LK |
| Input Voltage | 110/120V AC, 60Hz (US Standard) |
| Output Current | 75 Amps Continuous (12V DC) |
| Output Power | 900 Watts Nominal |
| Battery Compatibility | Lithium (LiFePO4), AGM, Gel, Flooded Lead-Acid |
| Charging Modes | 3-Stage Smart Charging (Bulk/Absorption/Float) |
| Cooling System | Thermal-Controlled Automatic Fan |
| Dimensions | 12.2 x 9.1 x 4.3 in |
| Net Weight | 7.8 lbs (3.5 kg) |
| Warranty | 1-Year Limited Manufacturer Warranty |
Recommended Applications
- RVs, Travel Trailers, Campers
- Boats & Marine Electrical Systems
- Automotive & Car Audio Installations
- Off-Grid Solar & Backup Power Systems
- 12V LED Lighting & Low-Voltage Equipment
- Water Pumps, Air Compressors, Winches
- Battery Charging Stations
Safety & Installation Notes
- Disconnect AC power & battery before installation
- Use 4 AWG or larger copper wire for 75A load
- Mount in well-ventilated area, avoid enclosed spaces
- Do not expose to moisture, rain, or extreme temperatures
- Professional installation recommended if unfamiliar with electrical systems
Warranty & Support
1-Year Limited Warranty
Covers defects in materials and workmanship under normal use.
US-based technical support available Monday–Friday
We will serve for you with all sincerity!
☑ DOT/SAE approved
☑ E-Mark approved
☑ CCC approved
☑ More than 50 national patents of products and technology
We do not ship to Hawaii, Alaska, Puerto Rico, PO Boxes, APO's, FPO's, or Military Mail Boxes
We will process your order and provide a tracking number within 48 hours (except weekends and holidays) after payment is received correctly.
1. Our 30-days Satisfaction Guarantee allows customers to return new and unused products in their original factory condition for any reason within 30days from the date of purchase.
2. All returns must be preapproved by us and have a return label. Unauthorized returns will not be accepted. Please keep item in resell condition. Used items will not be accepted for return.
3. Prompt refund will be implemented after we received item in good condition.
Customer service from Monday to Friday.
Response will be within 24 hours, not including weekend or holidays.
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