--- product_id: 313204591 title: "Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger; Weatherproof, Indoor&Outdoor; Ideal for livestock or predator control; 3-YR Warranty (MADE in USA)" brand: "parmak" price: "$512.58" currency: USD in_stock: true reviews_count: 5 category: "Parmak" url: https://www.desertcart.us/products/313204591-parmak-mag12-uo-12-volt-magnum-low-impedance-battery-operated store_origin: US region: United States of America --- # 30-mile effective fence range 12V battery-powered for ultimate portability Weatherproof design for all-season outdoor use Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger; Weatherproof, Indoor&Outdoor; Ideal for livestock or predator control; 3-YR Warranty (MADE in USA) **Brand:** parmak **Price:** $512.58 **Availability:** ✅ In Stock ## Summary > ⚡ Electrify your perimeter with confidence—power, precision, and protection in one sleek package! ## Quick Answers - **What is this?** Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger; Weatherproof, Indoor&Outdoor; Ideal for livestock or predator control; 3-YR Warranty (MADE in USA) by parmak - **How much does it cost?** $512.58 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/313204591-parmak-mag12-uo-12-volt-magnum-low-impedance-battery-operated) ## Best For - parmak enthusiasts ## Why This Product - Trusted parmak brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power that Roams:** Battery-operated 12V system delivers up to 3 months of continuous power—no outlet needed. - • **Long-Range Control:** Covers up to 30 miles of fencing, perfect for expansive pastures or predator defense. - • **Weatherproof Warrior:** Rugged, sealed casing stands strong against rain, moisture, and outdoor elements. - • **Built-In Fence Health Monitor:** Exclusive performance meter instantly shows fence status, eliminating guesswork and downtime. - • **Made in the USA, Built to Last:** Crafted domestically with a 3-year warranty for peace of mind and durability. ## Overview The Parmak MAG12-UO is a 12-volt, battery-operated electric fence charger designed for up to 30 miles of fencing. Featuring a unique built-in performance meter, it provides real-time fence condition feedback, ensuring optimal operation. Its weatherproof, portable design supports both indoor and outdoor use, delivering up to three months of continuous power per charge. Made in the USA and backed by a 3-year warranty, it’s ideal for livestock management and predator control. ## Description Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger Review: This thing works great. I have it connected to a battery bank - This thing works great. I have it connected to a battery bank, charged by a solar panel. It output voltage is much higher than other fencers. I could hear an audible 'snap' when one of our lamb touched it while grazing. Spotted a black bear near the pasture a few days ago. I believe this unit delivers enough voltage to deter a bear too. Our pasture is small. 1/2 of an acre. The furthest point away from the ground connection I measured 10,500 Volts with my digital fence tester. We have shallow ground (12 - 16 inch deep soil) before limestone. For a ground rod, I used a 10 foot piece of 1/2" copper pipe. Dug a trench 10 feet long, and 16" deep (bedrock) and lay the pipe horizontally. I ran 3 strands of fencing wire,,, the yellow plastic type, with 3 aluminum conductors,,, about 1800 feet of wire. The meter on the front of the unit is helpful, showing the fence status. With 1800ft of wire, the fence status is almost at the max position, meaning very strong, high voltage. I run the bottom wire 6-8 inches from the ground,,, I see some grass touching it,, but am still getting 10.5 KV furthest from ground. You should see the lamb leap in the air when they 'take a hit'. Review: Works on Deer to keep out of garden - I was looking for a DC charger that would keep the deer out of my garden. I have no AC power in that area. Before I purchased this charger I had tried several others but they were to weak. This one looked to have the power but had complaints about moisture and corrosion on the internal electronics. I ordered two chargers and when they arrived I noted that they had good strong cases. To guard against internal moisture I took some form-a-gasket used for autos and sealed the seams on the case as shown in the photo. I did not open the case. I just ran a bead and used my finger to spread it for coverage. I am on my second year and have had no issues with ether charger. I do have them simi covered from direct rain but they can get some moisture on them. They give a strong jolt and I have had no issues with deer in my gardens. I would buy again. I use the fiberglass electric fence rods from Tractor Supply to run the wire for the fence. For the battery I purchased a Marine/RV for power. They can be discharged further down that a normal car battery without harm. 5-9-2024 UPDATE Both units still fully operational with no issues. ## Features - 12-volt magnum low impedance battery operated 30-mile range electric fence charger - Parmak's exclusive built-in performance meter tells the exact condition of your fence; takes the guess work out of electric fencing - Magnum 12 provides up to three months of continuous operation between battery charges - Weatherproof, portable outdoor model for installation - Made in USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BWY6KW | | Brand | Parmak | | Built-In Media | Electric Fence Accessory | | Color | Multi | | Colour | Multi | | Customer Reviews | 3.8 out of 5 stars 485 Reviews | | EU Spare Part Availability Duration | 3 Months | | Global Trade Identification Number | 00054711231130 | | Input Voltage | 12 Volts | | Input voltage | 12 Volts | | Item Type Name | Parmak MAG12-UO Magnum 30-Mile Electric Fence Charger; Weatherproof | | Manufacturer | Parmak | | Mfr Part Number | MAG12UO | | Model Number | MAG12-UO | | Number of Items | 1 | | Specification Met | UL | | Specification met | UL | | UPC | 752913148552 054711231130 | | Unit Count | 1 Count | ## Product Details - **Brand:** Parmak - **Color:** Multi - **Input Voltage:** 12 volts - **Output Voltage:** 12 volts_of_direct_current - **Product Dimensions:** 11"D x 13.2"W x 2.75"H ## Images ![Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger; Weatherproof, Indoor&Outdoor; Ideal for livestock or predator control; 3-YR Warranty (MADE in USA) - Image 1](https://m.media-amazon.com/images/I/61L58CkWhRL.jpg) ![Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger; Weatherproof, Indoor&Outdoor; Ideal for livestock or predator control; 3-YR Warranty (MADE in USA) - Image 2](https://m.media-amazon.com/images/I/51Yad8FQRZL.jpg) ![Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger; Weatherproof, Indoor&Outdoor; Ideal for livestock or predator control; 3-YR Warranty (MADE in USA) - Image 3](https://m.media-amazon.com/images/I/61Xo1uEhesL.jpg) ![Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger; Weatherproof, Indoor&Outdoor; Ideal for livestock or predator control; 3-YR Warranty (MADE in USA) - Image 4](https://m.media-amazon.com/images/I/51RKdx5ueVL.jpg) ![Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger; Weatherproof, Indoor&Outdoor; Ideal for livestock or predator control; 3-YR Warranty (MADE in USA) - Image 5](https://m.media-amazon.com/images/I/61Cu+m8Kf3L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ This thing works great. I have it connected to a battery bank *by J***S on 20 June 2017* This thing works great. I have it connected to a battery bank, charged by a solar panel. It output voltage is much higher than other fencers. I could hear an audible 'snap' when one of our lamb touched it while grazing. Spotted a black bear near the pasture a few days ago. I believe this unit delivers enough voltage to deter a bear too. Our pasture is small. 1/2 of an acre. The furthest point away from the ground connection I measured 10,500 Volts with my digital fence tester. We have shallow ground (12 - 16 inch deep soil) before limestone. For a ground rod, I used a 10 foot piece of 1/2" copper pipe. Dug a trench 10 feet long, and 16" deep (bedrock) and lay the pipe horizontally. I ran 3 strands of fencing wire,,, the yellow plastic type, with 3 aluminum conductors,,, about 1800 feet of wire. The meter on the front of the unit is helpful, showing the fence status. With 1800ft of wire, the fence status is almost at the max position, meaning very strong, high voltage. I run the bottom wire 6-8 inches from the ground,,, I see some grass touching it,, but am still getting 10.5 KV furthest from ground. You should see the lamb leap in the air when they 'take a hit'. ### ⭐⭐⭐⭐⭐ Works on Deer to keep out of garden *by J***Y on 29 June 2022* I was looking for a DC charger that would keep the deer out of my garden. I have no AC power in that area. Before I purchased this charger I had tried several others but they were to weak. This one looked to have the power but had complaints about moisture and corrosion on the internal electronics. I ordered two chargers and when they arrived I noted that they had good strong cases. To guard against internal moisture I took some form-a-gasket used for autos and sealed the seams on the case as shown in the photo. I did not open the case. I just ran a bead and used my finger to spread it for coverage. I am on my second year and have had no issues with ether charger. I do have them simi covered from direct rain but they can get some moisture on them. They give a strong jolt and I have had no issues with deer in my gardens. I would buy again. I use the fiberglass electric fence rods from Tractor Supply to run the wire for the fence. For the battery I purchased a Marine/RV for power. They can be discharged further down that a normal car battery without harm. 5-9-2024 UPDATE Both units still fully operational with no issues. ### ⭐ Great product, terrible seller. *by F***N on 10 May 2023* Update (November 2024): I ordered another of these fence chargers on October 24, but it was never delivered to me. An email message on November 4 indicated that the package was returned by the carrier and that a refund would be issued. No other explanation was provided for the failure to fulfill this order. This product is very good, but I would recommend ordering it from another source. I purchased one of these fence chargers late in 2018, and have been using it ever since to power around 4000 feet of fence with good results. We have a bull who was leaning on our barbed wire fence and even sticking his head through to "argue" with the neighbor's bull, but that all stopped after we installed a single strand of hot wire just inside the barbed wire fence. I really like the gauge on the front of case that provides an indication of the status of the system. From time to time the hot wire will get tangled with the barbed wire fence when deer jump over, and the gauge shows when the electric fence has gotten grounded on the metal fence. I simply locate the point where the hot wire is hung up on the barbed wire and pull it off. Having the hot wire grounded in this way does not appear to harm the fence charger at all. I used a 12-volt battery to power this fence charger until a couple of years ago, and now it is powered by a 12-volt power supply that is plugged into a 120-volt outlet. Both methods work well, but it was inconvenient to keep the battery charged up all the time. I drove in one 8-foot ground rod next to the fence charger and that seems to be working well enough for the grounding connection. Many recommendations call for three ground rods spaced 10 feet apart, but we're getting by with only one so far. ## Frequently Bought Together - Parmak MAG12-UO 12-Volt Magnum Low Impedance Battery Operated 30-Mile Range Electric Fence Charger, Multi, Twin - Zareba ITY-Z Standard Snug-fitting T-Post Insulator, 25 per Bag, Yelllow - YCFERESY Upgraded Electric Fence Polywire 3366 Feet 1026 Meters, 6 Stainless Steel Strands for Reliable Conductivity and Rust Resistance, Portable Electric Fencing,UV, Rust Resistant --- ## 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/313204591-parmak-mag12-uo-12-volt-magnum-low-impedance-battery-operated](https://www.desertcart.us/products/313204591-parmak-mag12-uo-12-volt-magnum-low-impedance-battery-operated) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-18*