PM3-55LK RV Power Converter - 55 Amp 110V AC to 12V DC Smart Battery Charger with Lithium/Lead-Acid Switch

The Most Popular Power Upgrade for Your RV – Smart, Silent, and Lithium-Ready!
The PowerMax PM3-55LK is the gold standard for RV power conversion. Whether you are maintaining your current lead-acid setup or upgrading to high-performance Lithium batteries, this 55 Amp deck-mount converter provides the clean, stable power your RV demands.

Key Features:

Exclusive Lithium/Lead-Acid Switch: Features the signature "LK" manual switch. Easily toggle between a Fixed Voltage (Lithium) mode and a 3-Stage Smart Charging (Lead-Acid) mode. It’s the perfect "future-proof" investment.

Stable 55A DC Output: Delivers 55 Amps of continuous, filtered power. Perfect for mid-sized RVs, ensuring flicker-free LED lighting and stable operation for sensitive electronics like laptops and TVs.

Advanced 3-Stage Charging: In lead-acid mode, it automatically cycles through Bulk, Absorption, and Float stages to maximize battery life and prevent overcharging.

Quiet-Cool Variable Speed Fan: The intelligent thermal sensor adjusts fan speed automatically. It stays whisper-quiet during low-load periods, ensuring a peaceful night's sleep in your RV.

Universal Deck Mount Design: Compact and versatile. Can be mounted in any position—horizontal, vertical, or even upside down—making it an ideal replacement for WFCO, Dometic, or Parallax units.

Certified Safety: Built-in protection against reverse polarity, over-temperature, short circuit, and overload. Fully UL & cUL certified for your peace of mind.

Specifications:

Model: PM3-55LK

Output: 55 Amp DC Continuous

Input: 105-135 VAC, 60 Hz

Charging Modes: 3-Stage Smart (Lead-Acid) / Fixed (Lithium)

Standard: UL & cUL Compliant