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Magnum PT-100 100A 200VDC MPPT Charge Controller. Magnum solar charge controller

Magnum PT-100 100A 200VDC MPPT Charge Controller. Magnum solar charge controller

    Magnum PT-100 100A 200VDC MPPT Charge Controller

    The PT-100 is an MPPT charge controller that harvests the full amount of usable energy from the PV array and delivers it to the batteries. The MPPT algorithm in the PT-100 finds the array’s maximum power point and works there while controlling the output current to 100 amps and the battery voltage to completely charge the battery. Auxiliary relay with programmability built-in for system access. Energy harvest data and battery Ahr/Whr data are stored for up to 255 days using internal data logging capabilities. To view this detail, use the optional remote.


    Output Current 100 amps
    Battery Voltage 12, 24, or 48 V
    Dimensions 8.5 x 15.5 x 4.0 (21.6 cm x 39.4 cm x 10.2 cm)
    Material Aluminum

    Refer to warranty document for terms and conditionsDocumentation

    Detailed Information

    Magnum Energy’s PT-100 is a Maximum PowerPoint Tracker (MPPT) charge controller designed to harvest the maximum available energy from the PV array and deliver it to the batteries. The PT-100‘s MPPT algorithm finds the maximum power point of the array and operates at this point while regulating the output current and battery voltage to fully charge the battery. The PT-100 is simple to use and reliable, providing maximum flexibility in sizing your PV array and charging different battery types. It also boasts a high voltage input equal to the battery bank voltage plus 200 volts up to a max of 240 volts open circuit on the input side and a max amperage of 100 amps in/out at 12, 24 and 48 volts. In addition, it has built in ground fault protection, arc fault protection and maintains over 99% efficiency from PV in to DC out, using less than 1 watt on self consumption.

    Maximizes system performance and improves battery life

    High Reliability

    Multi-state Charging. Maximizes system performance and improves battery life.

    Optimal Battery Charging. Maximizes system performance and improves battery life

    High Efficiency. provides higher than 99% conversion efficiency and uses less than two watts of power in nighttime mode


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    Terms Conditions

    US Solar Supplier Shipping Policy At USSolarSupplier, we recognize the importance of receiving your solar products promptly and efficiently. Our goal is to provide a seamless, customer-friendly experience throughout the entire shipping process. To help you better understand our shipping practices, please review our comprehensive shipping policy below.

    Shipping Costs and Carriers Shipping costs are calculated based on the weight and dimensions of the product(s) in your order. We utilize FedEx or UPS for ground shipments, and trusted freight carriers for larger shipments. All of our shipments are insured for your protection. For logistical reasons, all shipments are made using our company’s shipping account.

    Estimated Delivery Time For standard delivery, most orders will arrive at their destination within 7 to 10 business days. Please note that these estimates are subject to change depending on carrier’s operational capabilities and other factors beyond our control.

    Inspecting Shipments Upon Delivery When your order arrives, it’s of utmost importance that you meticulously inspect your shipment upon delivery. If delivered by a freight truck, you should reach out to the freight carrier using the phone number given on the carrier’s bill. By signing the delivery receipt without noting any potential damages, issues, or if you’re unable to inspect the delivery, you are legally confirming that you’ve received the shipment in good condition. Please be advised that USSolarSupplier can’t be held responsible for any damages or missing items not listed on the delivery receipt. If you decide to accept a package that’s visibly damaged, make sure to note on the delivery receipt that you’re signing for a damaged package. However, please note that USSolarSupplier can’t be held responsible for any damages or missing items accepted via signature delivery. After receiving your shipment, it is crucial that you carefully count and inspect the contents before acknowledging delivery. In the unlikely event that your shipment has been damaged during transit, please take photos of the materials and note the damage on the Bill of Lading (BOL). If there is major visible damage, you should reject the delivery outright. In case of damages, it is required that you notify US Solar Supplier by email ( within 24 hours of delivery. Please include the signed BOL, as well as any additional photos or supporting documents. If the BOL is not properly noted at the time of delivery, US Solar Supplier cannot be held responsible for additional costs for replacement materials. All returned items are subject to inspection and approval.

    Expedited Shipments We strive to ship expedited orders on the same day we receive them. However, orders placed after 1:00 PM Eastern Time (10:00 AM Pacific Standard Time) may not ship the same day. Expedited orders placed over the weekend or on major holidays will be processed and shipped on the following business day. Please note that carriers do not deliver on weekends or major holidays, with the exception of Saturday delivery. If you require Saturday delivery, please contact our sales department at 1 (800) 230-7004 for assistance.

    Out of Stock and Backordered Items Occasionally, an item may have a lead time or be backordered after your order is received. If there is a lead time associated with your order, we will contact you to confirm whether this lead time aligns with your project deadline.

    Please include this information in the order notes when placing your order, and we will do our best to accommodate your needs. For other special requirements, please call our sales department at 1 (800) 230-7004 before placing your order.

    Multiple Shipments

    We warehouse our products across the United States, and occasionally, we may need to ship your order from two or more different locations. In such cases, we will never charge you more for shipping than your original payment. If you require your order to arrive in a single shipment, please contact our sales department when placing your order at 1 (800) 230-7004 or add this information to the Order Комментарии и мнения владельцев box. To consolidate certain orders, we may need to bring the products into our Vista office and combine them before shipping, which may result in an additional 3-5 day lead time and additional shipping charges.

    International Shipments

    Currently, USSolarSupplier only ships within the United States and does not offer international shipping.

    Shipping on Your FedEx or UPS Account

    USSolarSupplier’s policy requires regular parcel orders (ground, air/express shipments, non-freight) to be shipped on our UPS account. We appreciate your understanding.

    Freight Shipments

    Certain products on USSolarSupplier must be shipped freight due to their weight, dimensions, or classification as hazardous materials. For more information, please refer to our Claims Returns Policy and Refund Policy.

    Freight Shipment Products include, but are not limited to:

    • Large solar panels (over 90 watts in most cases)
    • Large Inverters (over 1kW)
    • Rails longer than 9 feet (108)
    • Flooded lead-acid batteries
    • Deep cycle batteries
    • Lithium Iron Phosphate batteries (LiFeP04)

    Freight Options

    When placing an order that requires freight shipping, you will need the following information:

    Residential freight shipments are more expensive than commercial zone shipments due to accessibility and established routes. If your freight shipment weighs over 100 pounds and you lack access to a forklift or loading dock, you will need a lift gate to unload your pallet from the truck.

    Freight can be complex; if you require assistance in selecting the appropriate shipping option, please contact our sales department at 1 (800) 230-7004 for support. The freight quotes provided on our website are approximate, and our team may be able to offer a better rate.

    Please note that the shipping cost displayed at checkout is an estimate and may be adjusted at the time of shipment. Freight rates may increase while the product is in production. You can help by providing a commercial shipping address that can accommodate a semi-trailer and/or acknowledging the outlined terms and conditions.

    Ground/Freight Cost Logistics Unforeseen Expenses

    Any fees incurred by a shipping carrier due to a lack of delivery information (address or location) will automatically be billed to the customer. Please ensure you check your order confirmation for accurate information.

    When placing an order by phone, inform the sales representative of any shipping irregularities (inaccessible areas for shipping carriers, such as narrow driveways, rural locations, steep hills, dirt/gravel roads, or missing address information and signage).

    By placing an order with USSolarSupplier, you agree to our shipping policy. If you have any questions or concerns about shipping, please feel free to contact our friendly and knowledgeable customer support team. We are always here to help and ensure that your experience with USSolarSupplier is a positive one.

    Restocking Fee

    Please note that a 40% restocking fee will be applied to panels, inverters, and batteries once the order has been processed and delivery has been attempted. This fee is in place to cover the costs associated with processing, handling, and restocking returned items.

    If you need to cancel an order, please contact our customer support team as soon as possible. If the order has not yet been shipped, we will make every effort to cancel it without incurring additional costs. However, if the order has already been shipped, you will be responsible for the return shipping costs and the 40% restocking fee mentioned above.

    Claims Returns Policy

    If you receive damaged, defective, or incorrect products, please contact our customer support team within 5 business days of receiving the shipment. We will work with you to find a suitable solution, which may include issuing a refund, replacing the product, or providing technical support to resolve the issue.

    To initiate a return, you must first obtain a Return Merchandise Authorization (RMA) number from our customer support team. Please note that returns without an RMA number will not be accepted. When returning products, they must be in their original packaging, with all accessories and documentation included. The customer is responsible for return shipping costs, and the 40% restocking fee will apply.

    Refund Policy

    Refunds will be issued to the original payment method within 14 business days of receiving the returned product(s). The refund amount will be the purchase price minus the 40% restocking fee and any shipping charges incurred during the initial shipment and return process.

    Lost or Stolen Packages

    USSolarSupplier is not responsible for lost or stolen packages confirmed to be delivered to the address entered for an order. Upon inquiry, we will confirm the delivery to the address provided, date of delivery, tracking information, and shipping carrier information for the customer to investigate.

    By placing an order with USSolarSupplier, you agree to our shipping policy. If you have any questions or concerns about shipping, please feel free to contact our friendly and knowledgeable customer support team. We are always here to help and ensure that your experience with USSolarSupplier is a positive one.

    Introduction: Make the Harbor Freight 45W Solar Panel Charge Controller Useful With a Simple Mod.

    Like many of us who are interested in solar power, I bought a Harbor Freight 45 Watt Solar Panel kit for about 150 which came with three solar panels, and a charge controller. It was exciting times when I set it up several months ago to see the front panel lit up. I thought that I was getting enough solar juice to charge my SLA batteries. However, the excitement was short lived. I was foolish enough thinking that the light was all powered by solar for the very first night, and forgot the fact that the battery was fully charged already before I connected it to the solar panel. Just like many found out, the charge controller doesn’t appear to be working as we expected. For example, my SLA battery originally had 12.5 Volt. During the day, the front panel shows about 13-14 volts so I leave the charge controller on, but when I come back from work, I found that the battery wasn’t charged at all. In fact, the voltage would go down about 0.1 volt to become 12.4 volt. What’s going on?

    As usual I searched for answers on the internet but most people simply complain that this particular charge controller is not efficient, or it can only be used as a power distribution device. To get a better charger, one would need to invest another 100. Basically, the solar panel kit is only good for demonstrating the concept (I have to say that from outside, the charge controller looks nice and solid).

    Recently, I got some spare time and started making diagnosis on this charge controller and I found that while it indeed charges during the day, it discharges as the sun goes down. I suspect that when the voltage from the solar panel is below the voltage of the battery, it may be discharging the battery. I don’t know this for sure since I haven’t open the device to see the design. This device does discharge at night at about 30mA if you leave it on (the LED display uses power unless you turn the LED display off which is recommended).

    Step 1: Add a Blocking Diode to Stop Discharging the Battery

    One experiment I did was to simply add a blocking diode on the back of the charge controller. I initially placed the diode on the battery side but based on recommendations from evilmunkey, the diode should now be put on the solar panel side. The diode I am using is 1N5822 which happens to be in my toolbox so I guess many other diodes would work as well. 1N5822 can handle 40v 3A so I use two of them in parallel to make sure it can handle the current from the solar panel. Also make sure that the cathode lead of the 1N5822 should be connected to the charge controller side while the anode should go to the solar panel side. Previously I experimented with putting the diode on the battery side but I was concerned that it might overcharge the battery so now the diode is on the solar panel side. After the modification, my SLA battery is charged better.

    magnum, pt-100, 100a, 200vdc

    Step 2: Caveats With the Blocking Diode

    Since I don’t know the charging circuit inside the box, the effect of this added blocking diode on the solar panel and battery charging is not clear. Theoretically the charge controller should already have blocking diodes on the solar panel side, otherwise it will give all back the solar power at night. The ultimate solution would be to look at the components inside the box and see what it’s doing. There are many different kinds of controllers and they all work differently. I assume that this is a PWM type but I don’t really know. For example, does it have a microcontroller to control the voltage? What about current limiting? Given all the unknowns, I wouldn’t risk charging any expensive batteries. In my case, I salvaged some old 12V SLA batteries by refiling with Epsom water. I also leave the battery outdoor in case of outgassing. So far it works fine and the battery is actually revived to a certain extent. This is very much an experiment so be careful not to overcharge. Finally, make sure to add an inline fuse near the battery terminal (such as 5A). It’s better to be on the safe side. If anyone has any better suggestions improving this unit, please let me know. I may open the box in the future and write another instructable later. For now, I need to move on to the next project with desulfator.

    Off-Grid Battery-BasedSolar Systems

    With BOXED Solar, you will find the battery-based power system of the right size for your application. Our complete off-grid systems include everything from the solar panels and inverter to the batteries and accessories. They come pre-wired with all the necessary circuit protection, significantly reducing installation time. We offer wiring diagrams and outstanding support from beginning to end. Continue below to learn what we mean when we say complete.

    Monocrystalline Solar PanelsAndA MPPT Charge Controller

    Efficient And Reliable Charging

    The Canadian Solar or Trina Solar panels used in BOXED off-grid systems feature 60 PERC monocrystalline solar cells for a nominal output power of 300 to 320 Watts. The panel’s peak efficiency is in the neighborhood of 19% as they perform exceptionally well in overcast conditions. These panels include a 10-year product warranty and a 25-year linear performance guarantee.

    Nominal Power: 300W-320WCell Type: Monocrystalline

    The PT-100 charge controller is ETL listed and CSA certified; it comes with built-in Arc Fault and Ground Fault protection. The MPPT controller features advanced web monitoring and a frontal graphics display. With 99% conversion efficiency, the PT-100 allows for increased battery charging capacity at 100 Amperes. It is made in the United States by Magnum-Dimensions and comes with a 5-year standard warranty.

    Output Current: 100ACharging Algorithm: MPPT

    Magnum Energy Inverter-ChargerWith Wiring Enclosure

    Power Conversion With No Limits

    Magnum Energy MS-PAE Inverter-ChargerThe MS-PAE is a pure sine wave inverter and charger made for demanding renewable energy applications. A single inverter supplies 120/240 Volts AC output without an external transformer and can also be paired with fuel-based generators to extend its power capacity. The Magnum MS-PAE inverter is a high-performing solution for backup power, self-consumption, and off-grid energy systems. It comes with a standard 3-year warranty extendable to 5 years when used with Magnum MP wiring enclosures.

    magnum, pt-100, 100a, 200vdc

    Magnum Model: MS4448PAENominal Power: 4,400WOutput: 120V / 240V AC Single-Phase

    Magnum Energy MP Wiring PanelThe Magnum MP Panel allows you to have all of your DC and AC connections in one place, providing an ETL-certified enclosure for your wiring and circuit protection. The MP Panel comes with a 175A breaker, busbars for AC inputs, AC output, neutral, ground, PV, PV-, Bat, Bat-, and a shunt. It is made in the United States and comes with a 5-year warranty. The warranty of the MS-PAE inverters is extended to 5 years when installed with an MP Panel.

    Full Power Center

    All Connections In One Place

    Do not struggle with the small stuff. Have the MP panel delivered with all the cables, breakers, circuit protection, and connection busbars to ensure a professional and safe installation. The enclosure is rated for indoor use and is fully compatible with the Magnum MS-PAE inverter and PT-100 charge controller. By installing the system this way, all the Magnum equipment is backed by a 5-year warranty supported by their facility in Everett, Washington.

    Energy Storage

    Flooded, AGM, Lithium Batteries

    We configure our off-grid systems with Trojan (flooded), Surrette Rolls (flooded), Fullriver (AGM), or Simpliphi (Lithium Ferrous Phosphate) batteries. They are all North America based manufacturers, and their batteries come with the most extensive product warranties in the industry. These batteries offer high performance, long life cycles, and a proven track record in renewable energy systems around the US. We size the energy storage of our BOXED solar systems to charge in one sunny day at full capacity – 50% Depth of Discharge (DOD) with flooded and AGM batteries, 80% DOD with LFP batteries.

    Additionally You Will GetEverything You Will Need

    For A Successful Installation

    Certified SupportBesides the downloadable installation manuals provided by the equipment manufacturers, our Champion staff, which includes NABCEP-certified engineers, will be always available to help you with your project.

    All AccessoriesOur off-grid systems come with PV output cables, combiner box, and breakers for solar connections; they also include battery-interconnect cables. Other components, such as battery enclosures, auto generator start (AGS), and mounting system, can be added.

    Wiring DiagramsBOXED off-grid systems come with a full set of wiring diagrams and installation manuals. The PDF package covers wiring requirements, PV strings, breaker positioning, connection terminals, battery interconnection, and product datasheets.

    magnum, pt-100, 100a, 200vdc

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