--- product_id: 446019978 title: "Side Post Battery Disconnect Switch 12V 24V, Ampper Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt)" brand: "ampper" price: "222 zł" currency: PLN in_stock: false reviews_count: 5 category: "Ampper" url: https://www.desertcart.pl/products/446019978-side-post-battery-disconnect-switch-12v-24v-ampper-knife-blade store_origin: PL region: Poland --- # 200A continuous, 600A momentary power Easy knife blade on/off switch Solid brass, rust & corrosion resistant Side Post Battery Disconnect Switch 12V 24V, Ampper Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt) **Brand:** ampper **Price:** 222 zł **Availability:** ❌ Out of Stock ## Summary > 🔋 Cut the power, not the convenience — stay in control with Ampper’s side post switch! ## Quick Answers - **What is this?** Side Post Battery Disconnect Switch 12V 24V, Ampper Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt) by ampper - **How much does it cost?** 222 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/446019978-side-post-battery-disconnect-switch-12v-24v-ampper-knife-blade) ## Best For - ampper enthusiasts ## Why This Product - Trusted ampper brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Isolates your battery to prevent power drain and electrical hazards when your vehicle or boat is idle. - • **Built to Last:** Crafted from solid brass for unbeatable durability and corrosion resistance in any environment. - • **Effortless Control:** Knife blade design lets you cut power instantly with a simple lift—no fuss, no tools. - • **Power that Performs:** Handles up to 200A continuous and 600A momentary at 12V—built for serious electrical demands. - • **Universal Compatibility:** Fits GM side post batteries with 3/8" holes and works seamlessly on cars, boats, RVs, and ATVs. ## Overview The Ampper Side Post Battery Disconnect Switch is a heavy-duty, brass-made knife blade switch designed for 12V-24V DC systems. Compatible with GM side post batteries featuring 3/8" holes, it supports 200A continuous and 600A momentary current, providing a reliable and corrosion-resistant solution to safely isolate and cut power in cars, boats, RVs, and ATVs. Easy to install and operate, it prevents battery drain and enhances electrical safety with a simple on/off mechanism. ## Description Ampper side post knife blade battery disconnect master switch for Marine Car Boat RV ATV Vehicles Specifications: 1, Compatible with GM side post batteries, battery side post with 3/8" hole only. 1, On/Off 2 position. 2, Voltage: DC 12V- 24V, 200A continuous and 600A momentary at DC 12V. 3, Easy to install & simple to use. 4, Knife blade type, lift the knife, then power will cut. 5, Solid brass made, rust and corrosion resistant, durable made for safety use. 6, Can stand alone or be locked together with other switch. 7, Compatible with GM side post batteries or other batteries to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely. 8, Used for Car, Vehicle, RV and Boat, also electrical equipment's switch. 9, Package size: 3.9" x 2.75" x 2.75". Complete kits includes: 1 x battery switch 1 x short bolt 1 x long bolt Review: Easy to fit simple design Review: Why isn't everything this simple and effective?? ## Features - Compatible: with a long bolt, used for side post terminal, battery side post with 3/8" hole only, recommended to mount on NEGATIVE battery post, DC 12V- 24V system, 200A continuous and 600A momentary at DC 12V, on/off 2 position. - Convenience: knife blade type, easy to install & simple to use. Lift the knife, then power will cut. - Heavy Duty: solid brass made, rust and corrosion resistant, durable made for safety use. - Purpose: used for battery to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely. - Compatible with GM side post batteries or other batteries which have a 3/8" side post terminal, also used for electrical equipment. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JYDY7FQ | | Actuator Type | Rotary | | Best Sellers Rank | #201,550 in Sports, Fitness & Outdoors ( See Top 100 in Sports, Fitness & Outdoors ) #139 in Electrical Equipment Battery Switches | | Brand | Ampper | | Brand Name | Ampper | | Circuit Type | 1-way | | Colour | Knife Blade | | Connectivity Protocol | Wi-Fi | | Connector Type | Bolt | | Contact Material | Brass | | Contact Type | Normally Open | | Control Method | Touch | | Controller Type | Push Button | | Country of Origin | Hong Kong | | Current Rating | 200 Amps | | Customer Reviews | 4.6 out of 5 stars 4,546 Reviews | | International Protection Rating | IP65 | | Item Dimensions | 7 x 9.5 x 7.5 Centimeters | | Item Weight | 8.5 Ounces | | Manufacturer | Ampper | | Material Type | Brass | | Mounting Type | Handlebar Mount | | Number of Items | 1 | | Number of Positions | 2 | | Operating Voltage | 24 Volts | | Operation Mode | Off | | Specification Met | Ip65 | | Switch Type | Knife Blade | | Terminal | Blade | | Unit Count | 1 Count | ## Product Details - **Connector Type:** Bolt - **Contact Type:** Normally Open - **Current Rating:** 200 Amps - **Operating Voltage:** 24 Volts - **Operation Mode:** Off ## Images ![Side Post Battery Disconnect Switch 12V 24V, Ampper Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt) - Image 1](https://m.media-amazon.com/images/I/61ANBOj6EML.jpg) ![Side Post Battery Disconnect Switch 12V 24V, Ampper Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt) - Image 2](https://m.media-amazon.com/images/I/61CPaJ4I71L.jpg) ![Side Post Battery Disconnect Switch 12V 24V, Ampper Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt) - Image 3](https://m.media-amazon.com/images/I/717LBD0aYRL.jpg) ![Side Post Battery Disconnect Switch 12V 24V, Ampper Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt) - Image 4](https://m.media-amazon.com/images/I/713ST0MR3lL.jpg) ![Side Post Battery Disconnect Switch 12V 24V, Ampper Knife Blade Battery Switch Disconnect Power Cut Shut Off for Car Boat RV ATV (with Long Bolt) - Image 5](https://m.media-amazon.com/images/I/71zHB9vavYL.jpg) ## Questions & Answers **Q: Will this work on a c5 corvette ?** A: Well, yes but. It's REALLY tight in there, up against the fuse box. Figure on cursing and scraped knuckles. You can't swing a wrench and a socket won't fit in there. I pulled the battery loose, first attached the - cable to the switch, then attached using the long bolt and my fingers. Finished up with a very short wrench from my toolbox. A real pain but the switch seems to work well and makes disconnecting a breeze. **Q: Why does it have to be connected to the negative terminal and not the positive terminal?** A: That's ok, positive or negative can be connected. We recommend to install this cut off switches on the negative, not the positive, because lower current in negative, will be more safety. The switch can be install in the negative/positive wire, another short battery cable or cut existing cable and attach terminals on each end. **Q: Will this fit a duralast gold 101-dlg? cadillac 2007 sts.** A: i bought it for 1977 corvette and it fit I am sure it will fit your sts. **Q: Does this disconnect work on newer model cars** A: 1. you will need about a 3" space next to the negative terminal in order to have room to install this switch. 2. depending on the vehicle you will need clearance for the "knife" to be up in order to close the hood, or it could be installed so it opens to the side if there is enough room there. 3. disconnecting the battery may require radio code for the radio to operate again after removing the power. Other functions may be affected too like the clock, possibly other functions as well 4. you will need the proper tool to tighten the bolt to the battery otherwise it will move about as you operate the switch. I am using this on a full size chevy snow plow yard truck (off road only) with plenty of room and I don't need the clock, that one does not need radio codes after disconnection. Look at the pictures carefully to decide if it will fit on your vehicle, if it fits, it will work. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy to fit simple design *by K***. on 22 February 2026* ### ⭐⭐⭐⭐⭐ Why isn't everything this simple and effective?? *by T***R on 25 January 2023* ### ⭐⭐⭐⭐⭐ What I needed! *by M***T on 12 October 2025* ## Frequently Bought Together - Side Post Knife Blade Master Switch, Ampper 12V / 24V Battery Disconnect Switch Isolator for Marine Car Boat RV ATV Vehicles (with Long Bolt) - Top Post Knife Blade Master Switch, 12V 24V Battery Disconnect Switch for Auto Car RV-Marine Boat Truck Vehicle, Battery Cut Off Shut Off Switch (Negative,Vertical) - Top Post Negative Battery Disconnect Switch 12V / 24V 250/750 Amps Knife Blade Isolator Power Cutoff Switch for Marine Car Boat RV ATV (Horizontal and Vertical) --- ## 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.pl/products/446019978-side-post-battery-disconnect-switch-12v-24v-ampper-knife-blade](https://www.desertcart.pl/products/446019978-side-post-battery-disconnect-switch-12v-24v-ampper-knife-blade) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-11*