--- product_id: 805971508 title: "12-48V Master Battery Disconnect Switch, On/Off High Current 300A Battery Power Cutoff Isolator Killer Switch with Face Plate for Car Vehicle RV Truck Boat ATV" brand: "faststorm" price: "RM221" currency: MYR in_stock: true category: "Faststorm" url: https://www.desertcart.com.my/products/805971508-12-48v-master-battery-disconnect-switch-on-off-high-current store_origin: MY region: Malaysia --- # 300A continuous current capacity Zero-noise silent operation 3-minute hassle-free install 12-48V Master Battery Disconnect Switch, On/Off High Current 300A Battery Power Cutoff Isolator Killer Switch with Face Plate for Car Vehicle RV Truck Boat ATV **Brand:** faststorm **Price:** RM221 **Availability:** ✅ In Stock ## Summary > 🔋 Cut the noise, not the power—master your battery with confidence! ## Quick Answers - **What is this?** 12-48V Master Battery Disconnect Switch, On/Off High Current 300A Battery Power Cutoff Isolator Killer Switch with Face Plate for Car Vehicle RV Truck Boat ATV by faststorm - **How much does it cost?** RM221 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/805971508-12-48v-master-battery-disconnect-switch-on-off-high-current) ## Best For - faststorm enthusiasts ## Why This Product - Trusted faststorm brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Pre-drilled holes and universal compatibility make installation a breeze in under 3 minutes. - • **Built for Adventure:** Rugged aluminum alloy design resists saltwater, vibration, and harsh environments—perfect for RVs, boats, and off-road vehicles. - • **Battery Life Defender:** 100% isolates your battery to prevent parasitic drain, protecting your investment during storage. - • **Powerhouse Protection:** Handles up to 300A continuous and 1000A intermittent current for extreme durability. - • **Silent Safety Guardian:** Operates completely noise-free—no humming or buzzing to disrupt your peace of mind. ## Overview The FASTSTORM 12-48V Master Battery Disconnect Switch is a heavy-duty, silent-operating power cutoff isolator designed for vehicles and solar systems. Rated for 300A continuous current and built with rugged aluminum alloy, it ensures reliable battery isolation to prevent drain, electrical fires, and accidental discharge. Easy to install in minutes with universal compatibility, it’s the ultimate safeguard for cars, RVs, boats, and off-road vehicles, backed by a 1-year warranty. ## Description Product description 12-48V Heavy Duty High Current Battery Switch for RVs, Cars, Trucks and Boats Battery Disconnect Switch ## Features - 【Zero-Noise Safety Guardian】 Our 12V battery disconnect switch used for 12-48 VDC systems to isolate and secure the electrical system, operates silently with no humming or buzzing, ensuring peace of mind while maintaining ultimate protection. It instantly cuts power to prevent battery drain, electrical fires, and accidental discharge – perfect for cars, RVs, boats, and solar systems - 【300A Heavy-Duty Power disconnect switch 】 Engineered for extreme conditions, this rugged aluminum alloy switch design withstand saltwater, vibration, handles 300A continuous/1000A intermittent duty. Built to thrive in marine, off-road, and solar environments, it delivers unmatched durability for ATVs, trucks, UTVs, and solar panel arrays - 【3-Minute Hassle-Free Install】 Pre-drilled holes and universal 12V compatibility let you secure your electrical system in minutes –Step 1: Disconnect the battery and choose the negative cable; Step 2: Choose the proper mounting position for the switch; Step 3: Connect the positive and negative cables ( DO NOT ATTACH AT THE SAME TIME to shut off the switch ), then install the switch; Step 4: Reconnect the battery and check for correct operation - 【Battery Life Defender】 Eliminates parasitic drain by 100% isolating batteries during storage. Protect your RV/marine battery from winter kill or theft while preserving power for emergency starts. Battery Power Shut Off Switch features clear ON/OFF markings and an audible click for confident operation - 【Buy with confidence】 This battery disconnect switch comes complete with a 1-Year warranty. If the shut-off switch ever fails on your ATVs, Trailers, Off-road, RVs, Trucks, Heavy Vehicle, UTV, Boats, Cars during this period, please feel free to contact us for a replacement. Save time and money by purchasing this part, replacing them by yourself within minutes. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0FP22L3XP | | Best Sellers Rank | #7,738 in Automotive ( See Top 100 in Automotive ) #17 in Automotive Replacement Battery Switches | | Brand | FASTSTORM | | Brand Name | FASTSTORM | | Color | 300A Heavy Duty Battery Switch w/ Bracket | | Connector Type | Clamp | | Contact Type | Normally Open | | Current Rating | 300 Amps | | Customer Reviews | 5.0 out of 5 stars 1 Review | | Item Dimensions | 4.7 x 3 x 3.2 inches | | Manufacturer | FASTSTORM | | Material Type | Aluminum, Copper | | Model | 105512 | | Mounting Type | Panel Mount | | Number of Items | 1 | | Operating Voltage | 12 Volts (DC) | | Operation Mode | ON-OFF | | Part Number | 105512 | | Specification Met | CE | | Terminal | Screw | ## Images ![12-48V Master Battery Disconnect Switch, On/Off High Current 300A Battery Power Cutoff Isolator Killer Switch with Face Plate for Car Vehicle RV Truck Boat ATV - Image 1](https://m.media-amazon.com/images/I/71lBJp9D8-L.jpg) ## Available Options This product comes in different **Color** options. --- ## 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.com.my/products/805971508-12-48v-master-battery-disconnect-switch-on-off-high-current](https://www.desertcart.com.my/products/805971508-12-48v-master-battery-disconnect-switch-on-off-high-current) --- *Product available on Desertcart Malaysia* *Store origin: MY* *Last updated: 2026-07-25*