--- product_id: 10438554 title: "Morningstar SunSaver Duo 25A PWM Solar Charge Controller, with Remote Meter" brand: "morningstar corporation" price: "$373.30" currency: USD in_stock: true reviews_count: 10 category: "Morningstar Corporation" url: https://www.desertcart.us/products/10438554-morningstar-sunsaver-duo-25a-pwm-solar-charge-controller-with-remote store_origin: US region: United States of America --- # 25A dual battery PWM charge Remote LED meter display Advanced electronic protections Morningstar SunSaver Duo 25A PWM Solar Charge Controller, with Remote Meter **Brand:** morningstar corporation **Price:** $373.30 **Availability:** ✅ In Stock ## Summary > ⚡ Power your off-grid lifestyle with smart, safe, and savvy solar control! ## Quick Answers - **What is this?** Morningstar SunSaver Duo 25A PWM Solar Charge Controller, with Remote Meter by morningstar corporation - **How much does it cost?** $373.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/10438554-morningstar-sunsaver-duo-25a-pwm-solar-charge-controller-with-remote) ## Best For - morningstar corporation enthusiasts ## Why This Product - Trusted morningstar corporation brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Withstand:** Robust surge, short-circuit, overload, and reverse polarity protections ensure your system stays safe and sound. - • **Dual Battery Mastery:** Simultaneously manages two 12V batteries with precision PWM charging for optimized off-grid power. - • **Plug & Play Simplicity:** Factory presets plus DIP switches and free MSView software make installation and customization effortless. - • **Trusted Solar Innovation:** From Morningstar, a US leader since 1993, boasting industry-low failure rates and 5-year warranty peace of mind. - • **Real-Time System Insights:** Remote LED meter delivers instant, accurate voltage, current, and battery status—no guesswork needed. ## Overview The Morningstar SunSaver Duo 25A PWM Solar Charge Controller expertly manages dual 12V battery charging with low self-consumption and high efficiency. Featuring a remote LED meter for real-time monitoring, easy installation via DIP switches or MSView software, and comprehensive electronic protections, it’s engineered for reliable, long-lasting off-grid solar setups. Backed by Morningstar’s industry-leading quality and a 5-year warranty, this controller is the ultimate choice for RVs, boats, and cabins demanding smart energy management. ## Description Buy Morningstar SunSaver Duo 25A PWM Solar Charge Controller, with Remote Meter | Includes remote meter LED display, dual 12V battery charging, DIP switch settings, MSView software, 5-yr warranty: Energy Controllers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Great Product and Great Service - I needed a controller that would independently manage two batteries and this one seemed to have the right stuff. After reading the detailed online documentation I was quickly convinced that this device was NOT Harbor Freight quality. Another good thing is that it has twice the current-handling capacity that I'll ever need for three 100W solar panels, meaning that it should last for dozens of years because it will never be "driven hard" or "worked at capacity". That, combined with the 5 year warranty made it a no-brainer to take the chance. Before installation in my RV I contemplated the many options for wiring and switching, etc, and then sent a note to their technical department seeking advice. Response was immediate, knowledgeable and thorough, helping me to better-customize my installation design. It's now been up and running for over two weeks and it does everything they said it would. Solar is the best thing that ever happened to an RV camper, and anyone who has ever depended on RV batteries knows how much work it takes and the cash it costs if you don't have well-managed battery maintenance. Batteries are a "living thing", and without careful care and feeding they won't be there when you need them. This little gem takes care of them FOR you, while you do other FUN stuff. And with my 300W of Solar potential, I'll not have any problem topping them off while living off the grid each day. One more footnote: As much as I've been in the electrical/electronics field for my entire life, I am more prone to do stupid things like mess with wiring while the circuit is hot even though I know I should NOT. Well, I did it here too, and I was in a hurry and carelessly reversed polarity on reconnecting the controller after I decided to permanently mount it. I proved their ruggedability claim! After a short burst of fireworks and then reconnecting it the right way, it came right back and was fully functional. It really is idiot proof, and I proved it! Review: Great little controller. - Build quality is very high. This controller works beautifully via Morningstar's algo and is keeping my battery; only running one battery right now, charged without overheating. The remote is also a great tool giving me at a glance reporting on the cond of my system. I was a little worried because the display has only 4 digits -- 2 to the right and 2 to the left of the decimal, so what was going to happen when the aH go > 100. But the display switched to 2 decimal place (xxx.x) when it rolled over... smart design on Morninstar's part. Very, very happy with my Duo and remote. Well worth the $ over the "dumb" cheaper unit I had prior. I have full confidence now that my battery(s) will live a long and happy a life as possible. ## Features - 25A PWM CONTROLLER: Morningstar SunSaver Duo Pulse Width Modulation (PWM) 25A solar charge controller delivers reliable dual battery charging for RV caravans, boats, cabins and other off-grid systems. It regulates the power of from the solar array to the battery bank. Benefit from low self-consumption and consistent energy harvesting efficiency. - GRAPHIC DISPLAY: The Remote Meter LED Display shows charging status, battery level, protection functions, and disconnect conditions, with highly accurate voltage and current readings. The meter features conformal coated printed circuit board and low self-consumption of 1 mA. - EASY INSTALLATION: Enjoy hassle-free setup with factory pre-sets or adjust accordingly with DIP switches or free MSView software. Electronic protections safeguard against wiring mistakes, ensuring safe and straightforward installation. Each SunSaver comes with a wire terminal cover for added convenience. - ELECTRONIC PROTECTIONS: These controllers feature built-in electronic protection against surges, short-circuits, overloads, and reverse polarity. They include high voltage and high temperature disconnect to safeguard against damage to electrical components. Advanced self-diagnostics alert users to installation or operational errors, while automatic recovery occurs when short circuits are cleared. - TRUSTED RELIABILITY: Morningstar Corporation is a US company established in 1993 and is a global leader in manufacturing PWM and MPPT solar charge controllers, inverters, and accessories. Renowned for the industry's lowest hardware failure rate, Morningstar provides dependable, innovative technology for advanced solar applications. Morningstar products include U.S. based Tech Support and are the top choice for mission-critical users. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Morningstar Corporation | | Color | white/black | | Display Type | LED | | EU Spare Part Availability Duration | 5 years | | Item Dimensions L x W x H | 11.3"L x 8.8"W x 2"H | | Item Weight | 2.2 pounds | | Operating Temperature | 60 °C | | Product Dimensions | 11.3"L x 8.8"W x 2"H | | Voltage | 12 volts | ## Product Details - **Color:** white/black - **Brand:** Morningstar Corporation - **Voltage:** 12 Volts - **Material:** Metal, Polycarbonate (PC) - **Item Weight:** 2.2 Pounds ## Images ![Morningstar SunSaver Duo 25A PWM Solar Charge Controller, with Remote Meter - Image 1](https://m.media-amazon.com/images/I/81NoqLSqUSL.jpg) ![Morningstar SunSaver Duo 25A PWM Solar Charge Controller, with Remote Meter - Image 2](https://m.media-amazon.com/images/I/71CdlwU54aL.jpg) ![Morningstar SunSaver Duo 25A PWM Solar Charge Controller, with Remote Meter - Image 3](https://m.media-amazon.com/images/I/715-vWpoZtL.jpg) ![Morningstar SunSaver Duo 25A PWM Solar Charge Controller, with Remote Meter - Image 4](https://m.media-amazon.com/images/I/41lXFkXNiSL.jpg) ![Morningstar SunSaver Duo 25A PWM Solar Charge Controller, with Remote Meter - Image 5](https://m.media-amazon.com/images/I/51V1CPM9TRL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product and Great Service *by D***. on June 12, 2014* I needed a controller that would independently manage two batteries and this one seemed to have the right stuff. After reading the detailed online documentation I was quickly convinced that this device was NOT Harbor Freight quality. Another good thing is that it has twice the current-handling capacity that I'll ever need for three 100W solar panels, meaning that it should last for dozens of years because it will never be "driven hard" or "worked at capacity". That, combined with the 5 year warranty made it a no-brainer to take the chance. Before installation in my RV I contemplated the many options for wiring and switching, etc, and then sent a note to their technical department seeking advice. Response was immediate, knowledgeable and thorough, helping me to better-customize my installation design. It's now been up and running for over two weeks and it does everything they said it would. Solar is the best thing that ever happened to an RV camper, and anyone who has ever depended on RV batteries knows how much work it takes and the cash it costs if you don't have well-managed battery maintenance. Batteries are a "living thing", and without careful care and feeding they won't be there when you need them. This little gem takes care of them FOR you, while you do other FUN stuff. And with my 300W of Solar potential, I'll not have any problem topping them off while living off the grid each day. One more footnote: As much as I've been in the electrical/electronics field for my entire life, I am more prone to do stupid things like mess with wiring while the circuit is hot even though I know I should NOT. Well, I did it here too, and I was in a hurry and carelessly reversed polarity on reconnecting the controller after I decided to permanently mount it. I proved their ruggedability claim! After a short burst of fireworks and then reconnecting it the right way, it came right back and was fully functional. It really is idiot proof, and I proved it! ### ⭐⭐⭐⭐⭐ Great little controller. *by S***K on April 6, 2013* Build quality is very high. This controller works beautifully via Morningstar's algo and is keeping my battery; only running one battery right now, charged without overheating. The remote is also a great tool giving me at a glance reporting on the cond of my system. I was a little worried because the display has only 4 digits -- 2 to the right and 2 to the left of the decimal, so what was going to happen when the aH go > 100. But the display switched to 2 decimal place (xxx.x) when it rolled over... smart design on Morninstar's part. Very, very happy with my Duo and remote. Well worth the $ over the "dumb" cheaper unit I had prior. I have full confidence now that my battery(s) will live a long and happy a life as possible. ### ⭐⭐⭐⭐ I've really been enjoying mine *by K***3 on November 28, 2016* It's nice, I like the fact u can charge two batteries at the same time and choose which one gets the most power. Would have been nice to get this in a MPPT controller at 30amps. But that's fine, I'm Running this in my small fishing boat it's my tendering/charging system. I wanted to help the trolling motor battery the most, and the crank battery the least, so I have it set 90/10. My first time with solar so just playing around here. Two new batteries one a very large 75lb deep cycle marine the other a AGM blue top marine crank/deep cycle. It comes with a nice view meter for viewing the voltage mainly nice to see what's going on at all times while charging or while the batteries are hard it work out on the lake. You will have to installing "3" 30amp inline fuse! One on each battery and one close to the solar panel. It's possible to use the solar inline glass fuses they make for 8g wiring. And While being water proof. I shopped all over my town until I found a very large in line fuse made with with 8g wire. So go find and buy 3 of the glass inline mc4 style fuses and install them before u setup. And another thing, I hope u have plenty of solar panels or willing to wait on changing time because 2, 12v batteries will take a while to charge on just one,100watt panel. Your only going to get more of a tender if your not in full sun all day. U need the Maximum 10-15amp requirement for charging. And a Min of 2amps when tendering. So make sure u have plenty of sun hitting your panels all day or enough panels to get your max and min requirements. Or u may end up killing your batteries over time, as deep cycle batteries need to be topped off soon rather then later. All in all I really like this setup it really tops my batteries off to there MAX!! Without hurting them, which gives u more run time. PS: If I had to do it all over again I would , but I'd like to have a MPPT controller also. It blows my mind how much power your losing from your panel to your controller to your battery to your device or if your using inverter your losing a lot more. Quick math for u. 100watt panel your only getting about 80watts then take away about 30 more watts using this controller. So u roughly have a 50watt panel pretty much after all said and done. Then if your not staying in full sun all day.? Your not even getting much. Your just pissing in the wind total waste of your hard earned money. And when your using/running a inverter then it loses a ton of power that's about 30watts or more!! U end up with a 40-50watt panel for sure if your in the blistering hot sun. ## Frequently Bought Together - Morningstar SunSaver Duo 25A PWM Solar Charge Controller (SSD-25RM) - Solar Panel Regulator for Two 12V Batteries, Adjustable Charge Settings, Includes Remote Meter, 5 Year WTY - Designed in The USA - Morningstar SunSaver 10A PWM Solar Charge Controller (SS-10L-12V) - Solar Panel Regulator for 12V batteries, Four Stage Battery Charging, LVD, HazLoc Rated, Low Noise, 5 Year WTY - Designed in the USA - Morningstar Remote Temperature Sensor (RTS) - Connects Battery to Charge Controller to Provide Accurate Battery Temperature Info When Battery & Controller Temperatures are Likely to Differ by >5C --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/10438554-morningstar-sunsaver-duo-25a-pwm-solar-charge-controller-with-remote](https://www.desertcart.us/products/10438554-morningstar-sunsaver-duo-25a-pwm-solar-charge-controller-with-remote) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-22*