PowerMax PM3/PM4-100LK 100 Amp 12V RV Converter Battery Charger – Open Box

UNUSED FACTORY-TESTED RETURN — FULL 2-YEAR MANUFACTURER WARRANTY
May ship labeled PM3 or PM4. The PM3 and PM4 versions of this converter are the identical unit with different labels.

ORIGINAL POWERMAX PM3/PM4 SERIES | 3-STAGE SMART CHARGING | LITHIUM COMPATIBLE

The PowerMax PM3/PM4-100LK is a reliable AC-to-DC power converter and battery charger that delivers dependable 12V DC power for RVs, boats, automotive applications and specialty electrical systems. It converts 110V AC into regulated 12V DC to charge compatible batteries and run 12V equipment, with built-in 3-stage smart charging, adjustable fixed-voltage operation and essential electrical protections.

KEY FEATURES

3-STAGE SMART CHARGING: Built-in multi-stage charging helps charge and maintain compatible 12V battery banks.
ADJUSTABLE OUTPUT VOLTAGE: Fixed-voltage mode adjusts from 13.0V to 16.5V to meet specific charging or power requirements.
MULTIPLE BATTERY TYPES: Compatible with Lithium (LiFePO4), Lead Acid and AGM batteries with appropriate charging settings.
DUAL FUNCTION: Works as both an AC-to-DC power converter and a 12V battery charger.
QUIET FAN COOLING: Temperature-controlled fan assists with heat management during operation.
BUILT-IN PROTECTION: Reverse polarity, overload and thermal protection.
LED STATUS INDICATOR: Shows operating status at a glance.
2-YEAR WARRANTY: Backed by the PowerMax manufacturer's warranty.

IDEAL APPLICATIONS

RVs, travel trailers, campers and motorhomes
Marine and boating applications
Automotive electrical systems and car audio
Off-grid battery systems
Bowfishing equipment
Communications and specialty 12V systems

PRODUCT SPECIFICATIONS

Brand	PowerMax
Model	PM3/PM4-100LK
Series	PM3/PM4-LK Original Series
Product Type	AC-to-DC Converter / Battery Charger
Input Voltage	110V AC
DC System	12V
Output Current	100 Amp
Adjustable Fixed Output	13.0V–16.5V DC
Charging Modes	3-Stage Smart Charging / Fixed Single Output
Battery Compatibility	Lithium (LiFePO4), Lead Acid, AGM
Cooling	Temperature-Controlled Fan
Protection	Reverse Polarity, Overload, Thermal
Cross-Reference	Replacement for WFCO WF-9800 Series
Condition	Open Box – Unused, Factory-Tested Return
Unit Dimensions	7.8 x 9.5 x 3.5 in
Warranty	2-Year Manufacturer Warranty

LOOKING FOR YOUR ORIGINAL PM3/PM4-LK? MEET THE NEW PM3/PM4-SME

The PM3/PM4-LK is the original PowerMax converter series, trusted for dependable RV and battery charging. PowerMax has introduced the NEW PM3/PM4-SME SERIES, the upgraded next-generation replacement for the PM3/PM4-LK lineup. Same trusted PowerMax brand. More control. More charging options.

Feature	Original PM3/PM4-LK	New PM3/PM4-SME
3-Stage Smart Charging	Yes	Yes
Adjustable Fixed Voltage	13.0–16.5V	13.0–16.0V
Fixed Output Mode	Yes	Yes
Selectable 2-Stage Mode	—	Yes
LCD Voltage Display	No	Yes
Cooling Fan	Yes	Yes
Manufacturer Warranty	2 Years	2 Years

PLEASE NOTE: This listing is for the ORIGINAL PM3/PM4-100LK converter shown in the title and item specifics. The PM3/PM4-SME is a separate product, sold separately, and is not included with this purchase. Ask us about upgrading.

BEFORE ORDERING

Please confirm your exact converter model and amperage, AC input requirements, battery type and recommended charging voltage, available installation space, and wiring connections. For Lithium (LiFePO4) applications, use the fixed-voltage setting recommended by your battery manufacturer.

POWERMAX CONVERTERS
Dependable Power for RV, Marine, Automotive & Specialty Applications.
Questions about replacing your original PM3/PM4-LK with the new PM3/PM4-SME? Contact us for help selecting the right model.