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MAGNUM 2000W 12VDC Pure Sine Inverter Charger Series - MS2012-20BL-U

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MAGNUM 2000W 12VDC Pure Sine Inverter Charger Series - MS2012-20BL-U

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Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

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Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

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Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

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We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

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Magnum Energy MS2012-20BL-U Pure Sine Inverter Charger

Model MS2012-20BL-U | 2000W Pure Sine Wave | 12VDC Input | 120VAC Output | Integrated Charger

2000 W

Power Output

12V DC

Input Voltage

90%+

Efficiency

Product Overview

The Magnum Energy MS2012-20BL-U is a top-of-the-line 2000W pure sine wave inverter charger engineered for 12VDC off-grid and backup power systems. It seamlessly converts DC battery power into clean, stable 120VAC output — safe for sensitive electronics and demanding appliances alike. With an integrated multi-stage battery charger, user-friendly LED monitoring, and comprehensive safety protections, the MS2012-20BL-U delivers dependable, high-efficiency performance for residential off-grid systems, RVs, marine applications, and emergency backup installations.

Key Features

2000W Pure Sine Wave Output: Delivers clean, utility-grade AC power that is safe for all electronics — including sensitive devices such as medical equipment, variable speed motors, and modern appliances — with no distortion or interference.

Integrated Multi-Stage Charger: The built-in 20A battery charger intelligently manages bulk, absorption, and float charging stages to maximize battery health, extend battery life, and ensure your bank stays fully charged whenever shore or generator power is available.

High Conversion Efficiency: Operates at 90%+ typical efficiency, minimizing energy losses during DC-to-AC conversion and reducing the draw on your battery bank for longer run times between charges.

User-Friendly LED Interface: Intuitive front-panel LED indicators and controls allow at-a-glance monitoring of inverter status, charge state, and fault conditions — making system operation and troubleshooting simple and straightforward.

Comprehensive Safety Protections: Built-in overload protection, low voltage shutdown, over-temperature protection, and short-circuit protection safeguard both the unit and connected loads under all operating conditions.

How It Works

The MS2012-20BL-U draws power from a 12VDC battery bank and converts it to clean 120VAC output using advanced pure sine wave electronics. When shore or generator power is present, the unit automatically switches to charger mode — replenishing your batteries through a smart multi-stage process. The result is a seamless, automatic power management system that keeps your loads running and your batteries healthy without manual intervention.

Inverter Mechanism: Advanced power electronics transform 12VDC battery power into a stable, pure sine wave 120VAC output — identical in quality to utility grid power — enabling safe operation of all AC appliances and sensitive devices.

Charging Functionality: When AC input is available, the integrated charger takes over, cycling through bulk, absorption, and float stages to deliver a complete, battery-optimized charge without user intervention.

Built-In Monitoring: Onboard LED indicators continuously display inverter output status, battery charge level, AC input presence, and fault alerts — giving operators real-time visibility into system health and performance.

Technical Specifications

Manufacturer	Magnum Energy
Model Number	MS2012-20BL-U
Power Output	2000 W
Input Voltage	12 VDC
Output Voltage	120 VAC
Output Waveform	Pure Sine Wave
Efficiency	90%+ (Typical)
Cooling Method	Fan-Cooled
Operating Temperature	-20°C to 40°C
Dimensions (L × W × H)	14.5" × 8.5" × 3.5"
Weight	35 lbs (15.9 kg)
Warranty	2-Year Manufacturer Warranty

Certifications & Compliance

Output Waveform: Pure Sine Wave — Safe for all AC loads including sensitive electronics
Protections: Overload, Low Voltage Shutdown, Over-Temperature, Short-Circuit
Input: 12 VDC Battery Bank Compatible
Warranty: 2-Year Manufacturer Warranty

Documentation

📄MS Series Specifications (PDF) 📘MS Series Owner's Manual (PDF)

● Available | Contact us for lead time and pricing

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Magnum Energy MS2012-20BL-U Pure Sine Inverter Charger

Model MS2012-20BL-U | 2000W Pure Sine Wave | 12VDC Input | 120VAC Output | Integrated Charger

2000 W

Power Output

12V DC

Input Voltage

90%+

Efficiency

Product Overview

Key Features

High Conversion Efficiency: Operates at 90%+ typical efficiency, minimizing energy losses during DC-to-AC conversion and reducing the draw on your battery bank for longer run times between charges.

How It Works

Technical Specifications

Manufacturer	Magnum Energy
Model Number	MS2012-20BL-U
Power Output	2000 W
Input Voltage	12 VDC
Output Voltage	120 VAC
Output Waveform	Pure Sine Wave
Efficiency	90%+ (Typical)
Cooling Method	Fan-Cooled
Operating Temperature	-20°C to 40°C
Dimensions (L × W × H)	14.5" × 8.5" × 3.5"
Weight	35 lbs (15.9 kg)
Warranty	2-Year Manufacturer Warranty

Certifications & Compliance

Documentation

📄MS Series Specifications (PDF) 📘MS Series Owner's Manual (PDF)

● Available | Contact us for lead time and pricing

FAQs

Got a question? We are here to answer

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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.