---
product_id: 37672863
title: "PowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity, Overload & Thermal Protection | Ideal for RV, Boat & Off-Grid Systems"
brand: "powermax"
price: "$U18610"
currency: UYU
in_stock: true
reviews_count: 8
url: https://www.desertcart.uy/products/37672863-powermax-pm4-100a-power-converter-110v-ac-to-12v-dc
store_origin: UY
region: Uruguay
---

# 100A high amperage power 4-stage smart battery charging Reverse polarity & thermal protection PowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity, Overload & Thermal Protection | Ideal for RV, Boat & Off-Grid Systems

**Brand:** powermax
**Price:** $U18610
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your adventure, protect your gear, and never miss a beat!

## Quick Answers

- **What is this?** PowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity, Overload & Thermal Protection | Ideal for RV, Boat & Off-Grid Systems by powermax
- **How much does it cost?** $U18610 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/37672863-powermax-pm4-100a-power-converter-110v-ac-to-12v-dc)

## Best For

- powermax enthusiasts

## Why This Product

- Trusted powermax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Powerhouse 100 Amps:** Unleash heavy-duty 12V power for RVs, boats & off-grid setups without flicker or overload.
- • **Built-In Safety Shield:** Protect your gear with reverse polarity, overload, and thermal safeguards—power with peace of mind.
- • **Plug & Play Installation:** Get up and running in 10 minutes—no rewiring, no hassle, just reliable power.
- • **Scalable Off-Grid Solution:** Easily expand your system by wiring multiple units for bigger power demands and ultimate flexibility.
- • **Smart 4-Stage Battery Care:** Advanced charging stages optimize battery health and extend lifespan effortlessly.

## Overview

The PowerMax PM4 100A is a robust 12V DC power converter delivering 100 amps with a built-in 4-stage smart battery charger. Designed for RVs, boats, and off-grid systems, it features comprehensive safety protections including reverse polarity, overload, and thermal safeguards. Its quick, no-rewire installation and scalable design make it ideal for professionals and enthusiasts seeking reliable, clean power for sensitive electronics and heavy-duty applications.

## Description

Full description not available

## Features

- 🔋 High Amperage for Heavy-Duty Use The PowerMax PM4 100A Power Converter delivers 100 amps of 12V DC power, ideal for running high-demand devices like RVs, boats, 12V car audio systems, and LED lighting. It provides stable and reliable power, making it the perfect solution for off-grid and backup power needs. Its high amperage ensures you can safely power larger systems without overloading or causing flickering lights in your camper or RV.
- ⚡ Wide Range of Applications PowerMax PM4 100A is designed for versatility, powering RVs and 12V DC electronics, boat trolling motors, LED lighting, and even small off-grid homes. It’s also perfect for powering equipment remotely or providing backup during emergencies. This converter can be used for home lighting, solar systems, and audio setups, making it an all-in-one solution for your power needs.
- 🔒 Built-In Protection for Safe Operation Safety is a top priority with the PowerMax PM4 100A. It features reverse polarity protection, overload protection, and thermal protection to prevent overheating and damage to your devices. The advanced safety features ensure your equipment stays protected from electrical mishaps, and the built-in innovative charging system maintains safe battery voltage for longer battery life.
- 🔋 Advanced 3-Stage Charging System Equipped with an intelligent 3-stage charging system, the PowerMax PM4 100A provides optimal charging to your RV or off-grid battery. The system includes Bulk, Absorption, and Float stages, preventing overcharging and improving battery longevity. This technology ensures that your battery remains in optimal condition, reducing the risk of boil-off or sulfation while enhancing overall performance.
- 🛠️ Easy Installation with No Rewiring One of the most user-friendly features of the PowerMax PM4 100A is its quick, 10-minute installation. You won’t need to rewire your system—simply mount the unit, connect it to your power source, and plug it into your devices. This makes it ideal for DIY enthusiasts and RV owners who want to upgrade their power systems without the hassle of complicated rewiring or professional help.
- 🔌 Perfect for Off-Grid and Solar Applications Whether using solar panels or living off the grid, the PowerMax PM4 100A provides reliable DC power for your essential devices. It works seamlessly with solar setups and other off-grid power systems, ensuring your 12V devices run efficiently. Whether you’re powering lights, pumps, or communications equipment, this unit delivers clean, stable power for your entire system.
- ⚡ Expandable Power Solutions For users with more demanding power needs, the PowerMax PM4 Series is designed for scalability. You can wire multiple units in series or parallel to meet higher amperage requirements. This flexibility allows you to scale up your power system as needed, making the PowerMax PM4 a perfect solution for larger RVs, marine vessels, or homes with multiple electrical systems.
- 💡 Reliable Power for Sensitive Electronics The PowerMax PM4 100A is a stable and reliable power source, ensuring your sensitive electronics, such as diagnostic tools, RV electronics, and marine equipment, run smoothly. The unit provides a clean, stable DC output that eliminates power fluctuations, which is crucial for running devices like ECMs, inverters, and other equipment that require consistent voltage for proper operation.
- 🔋 Long-Lasting Battery Maintenance Designed with battery longevity in mind, the PowerMax PM4 100A’s advanced charging system ensures your RV or off-grid battery stays in optimal condition. The 3-stage charging system helps prevent overcharging, preserving battery life and maximizing performance. Regular maintenance with this converter means you’ll get years of reliable power from your battery, with minimal maintenance required.
- ⚙️ Versatile Power for a Range of Devices From RVs and boats to home backup and off-grid systems, the PowerMax PM4 100A is the ideal power converter for various applications. It can be used to power 12V devices, charge batteries, or run essential equipment like trolling motors, lights, or communications devices. Its versatility and ease of use make it a must-have for off-grid living, boating, RVing, or home backup setups.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | PowerMax |
| Brand | PowerMax |
| Model | PM4 100A |
| Item Weight | 7 pounds |
| Product Dimensions | 12 x 9 x 5 inches |
| Item model number | PM4 100A |
| Batteries | 1 Nonstandard Battery batteries required. |
| Is Discontinued By Manufacturer | No |
| Exterior | Brushed |
| Manufacturer Part Number | PM4 100A |
| OEM Part Number | DLS 90A, PD9280A, WF68100A, WFCO 68-100A |
| Amperage | 100 Amps |
| Voltage | 14.6 Volts |
| Wattage | 1440 watts |

## Product Details

- **Brand:** PowerMax
- **Color:** Metallic
- **Item Weight:** 7 Pounds
- **Input Voltage:** 110 Volts
- **Item dimensions L x W x H:** 12 x 9 x 5 inches

## Images

![PowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity, Overload & Thermal Protection | Ideal for RV, Boat & Off-Grid Systems - Image 1](https://m.media-amazon.com/images/I/61LBJw+PX+L.jpg)
![PowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity, Overload & Thermal Protection | Ideal for RV, Boat & Off-Grid Systems - Image 2](https://m.media-amazon.com/images/I/51W+0ALXk8L.jpg)
![PowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity, Overload & Thermal Protection | Ideal for RV, Boat & Off-Grid Systems - Image 3](https://m.media-amazon.com/images/I/61iRR8wQkBL.jpg)
![PowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity, Overload & Thermal Protection | Ideal for RV, Boat & Off-Grid Systems - Image 4](https://m.media-amazon.com/images/I/5100HJPpVbL.jpg)
![PowerMax PM4 100A Power Converter 110V AC to 12V DC | 100 Amp with Built-in 4-Stage Smart Battery Charger | Reverse Polarity, Overload & Thermal Protection | Ideal for RV, Boat & Off-Grid Systems - Image 5](https://m.media-amazon.com/images/I/612spxvxv+L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Does the 100 amp work good with car amplifier and subwoofer over 800watt rms?**
A: Yes if you run an appropriate car battery in parallel with the 100 amp power supply. Stereo shops use the 100 amp unit as well. Think of it like this, the power supply is the alternator and the battery is the power source. Car batteries are everywhere and cheap. Run the two together and you will be just fine.

**Q: Anyone know how to contact the manufacturer regarding faulty product???**
A: I also got a 120a pm3 LK for charging my lifepo4 bank. The unit fan did not work for 4 days then started working and the converter changes volts and amps constantly after it is on for 15min.. clearly a defective unit.. I emailed powermax. They responded a few times to trouble shoot. Then once we established the unit is faulty now they refuse to respond to my emails… disputed charge on my credit card… not a good way to run a business.

**Q: Which model (Amps?) would be suitabe from 900 starting watts/700 running watts?**
A: 900W equates to 75A at 12V dc. W=V*I or Watts=Voltage times Current. So though the 75A model will work, but I would use the 100A model just to be on the safe side.

**Q: Is there any reason i can't replace my 55amp with this? Will my 3500 watt generator run it?**
A: Yes, a 3500 watt generator will provide 29.2 amps at 120 volts, however my 100 amp charger draws 17.1 amps when providing 91 amps output, so 120×17.1=2052 watts consumed to provide 12×91=1092 watts, giving a 53% efficiency ratio. Your 3500 watt generator will run one charger with power to spare, and would run two at low output figures, but would trip a breaker if two chargers were both supplying maximum output.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works Well
*by D***D on April 10, 2025*

I bought a second one to have as a backup after 3 years.Pretty good converter.Does work well.Three stagesAdjustable.And durable; my first one is still working good doing its job.I liked it and it's price so I got an extra one.

### ⭐⭐⭐⭐⭐ Useful for fixed voltage application
*by W***G on September 3, 2024*

The power unit on one of our machines died and I needed to find a replacement. After much research I settled on the powermax RV converter, 75 amp model. This unit can be used as a charger for lithium batteries but I needed a fixed voltage output source for my 12v machine. This unit was extremely easy to set up. Slide a switch over to "Fixed Voltage", plug it in to 115V outlet, connect voltmeter to output lugs and then turn adjusting screw on side of box to set the desired voltage. I set mine to 13.8v. Took less than a minute.Ended up buying two of them as I had two machines that used this type of power source. One was still working but I'm keeping that as the back up spare now. Both of my machines are now working fine with new power sources. Very please with the product, good instructions and easy set up. Thanks.W

### ⭐⭐⭐⭐⭐ Great price and works as it should
*by S***G on December 4, 2023*

This RV power converter is a true gem for anyone hitting the road in their home-on-wheels. Its seamless ability to transform various power sources into a consistent and reliable output is nothing short of impressive. The compact design and ease of installation make it a hassle-free addition to any RV setup.The converter’s efficiency shines through, ensuring all appliances and gadgets function seamlessly without worrying about power compatibility. The multiple charging ports cater to diverse devices, keeping everything powered up on the go. Its durability withstands the rigors of travel, and the built-in safety features provide peace of mind.Whether boondocking off the grid or connecting to campground power, this converter handles it all effortlessly. For RV enthusiasts seeking a trustworthy, versatile, and efficient power solution, this converter is a five-star companion on the open road. It seamlessly bridges the gap between power sources, enhancing the overall RV experience.

## Frequently Bought Together

- PowerMax PM4 100A 110V AC to 12V DC 100 Amp Power Converter with Built-in 4 Stage Smart Battery Charger with Reverse Polarity, Overload and Thermal Protection
- TKDMR 10pcs 1/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 10pcs 3:1 Heat Shrink Tubing
- 2 Gauge 2 AWG 10 Feet Black + 10 Feet Red (20 Feet Total) Welding Battery Pure Copper Flexible Cable Wire - Car, Inverter, RV, Solar by WindyNation

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-26*