--- product_id: 543942458 title: "Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off)" brand: "ampper" price: "₩50642" currency: KRW in_stock: true reviews_count: 13 category: "Ampper" url: https://www.desertcart.kr/products/543942458-top-post-battery-disconnect-switch-12-48-v-battery-power store_origin: KR region: South Korea --- # 12-48V DC compatibility 275A continuous current Direct fit, no mods needed Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off) **Brand:** ampper **Price:** ₩50642 **Availability:** ✅ In Stock ## Summary > 🔋 Cut the power, not the convenience—master your battery with Ampper! ## Quick Answers - **What is this?** Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off) by ampper - **How much does it cost?** ₩50642 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/543942458-top-post-battery-disconnect-switch-12-48-v-battery-power) ## 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 - • **Zero Power Drain:** Eliminates battery power draw when your vehicle or boat is idle—preserve your charge effortlessly. - • **Durable Safety Design:** Robust ABS plastic housing ensures long-lasting protection and safety. - • **Powerhouse Performance:** Handles up to 275A continuous current for reliable battery isolation. - • **Universal Voltage Range:** Works seamlessly with 12-48V DC systems—perfect for cars, RVs, and boats. - • **Plug & Play Installation:** Directly fits top post battery negative without extra cables or modifications. ## Overview The Ampper Top Post Battery Disconnect Switch is a heavy-duty, easy-to-install rotary switch designed for 12-48V DC systems. It supports up to 275A continuous current and fits standard top post batteries without additional cables or modifications. Built with durable ABS plastic housing, it safely isolates your vehicle, RV, or boat battery to prevent power drain during inactivity. ## Description Ampper top post battery disconnect switch, 12-48 V battery master switch disconnect isolator for car, vehicle, RV and boat Specifications: 1, Direct fit and no modifications, hook up to TOP post battery negative directly. 2, Do not need additional battery cables or lugs, isolate and secure the electrical system easily. 3, Used for DC 12 - 48 V systems, On/Off 2 positions. 4, 275 A continuous at DC 12V, 455 A intermittent at DC 12V, 1250 A momentary at DC 12V. 5, ABS plastic housing, durable made for safety use. 6, Extended the top post battery negative to original size: standard top post negative (17 mm cone/tapering negative (-)). 7, Installation space should be checked before purchase. 8, Used for standard top post battery (19 mm cone/tapering positive & 17 mm cone/tapering negative). 9, Can stand alone or be locked together with other switch. 10, Eliminate any power draw from the battery when vehicle or boat is not in use. 11, Disconnects the battery safely, widely used for car, vehicle, Rv and boat. Complete kits includes: 1 x battery switch. Review: Battery isolation switch. It does what it’s supposed to do - It’s very good. I’m satisfied Review: Plug and play. Very simple. Does what it says on the tin - What is there to say? So far it works reliably. Installing is very very easy thanks to the design. It is easy now to disconnect vehicle battery for storage. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | Ampper | | Connector type | Screw Terminal | | Contact type | Normally Open | | Current rating | 275 Amps | | Operating voltage | 12 Volts | | Operation mode | ON-OFF | ## Product Details - **Brand:** Ampper - **Connector type:** Screw Terminal - **Contact type:** Normally Open - **Current rating:** 275 Amps - **Item dimensions L x W x H:** 12.7 x 4.6 x 5.1 centimetres - **Material:** Plastic - **Operating voltage:** 12 Volts - **Operation mode:** ON-OFF - **Switch type:** Rotary - **Terminal:** Screw ## Images ![Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off) - Image 1](https://m.media-amazon.com/images/I/61pKMfieLdL.jpg) ![Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off) - Image 2](https://m.media-amazon.com/images/I/81ll2gWi0QL.jpg) ![Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off) - Image 3](https://m.media-amazon.com/images/I/71iUu2oQ5OL.jpg) ![Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off) - Image 4](https://m.media-amazon.com/images/I/71aiEgj+-6L.jpg) ![Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off) - Image 5](https://m.media-amazon.com/images/I/71z3eATRrBL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Battery isolation switch. It does what it’s supposed to do *by A***R on 5 February 2026* It’s very good. I’m satisfied ### ⭐⭐⭐⭐⭐ Plug and play. Very simple. Does what it says on the tin *by B***W on 7 January 2025* What is there to say? So far it works reliably. Installing is very very easy thanks to the design. It is easy now to disconnect vehicle battery for storage. ### ⭐⭐⭐⭐ Fits on the negative post *by P***L on 14 June 2024* If you're looking to isolate the positive post, this one won't fit on the positive as it is sized for the slightly smaller negative post. Even though isolating the negative is typical on car disconnects, this ought to be mentioned in the description somewhere as some may be looking, for whatever reason, to isolate the positive side. ## Frequently Bought Together - Ampper Top Post Battery Disconnect Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (Negative, On/Off) - Battery Disconnect Switch, Malictele On/Off Side Post Battery Switch 275A 12-48V Power Cut Master Disconnect Isolator for Car Vehicle RV and Boat --- ## 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.kr/products/543942458-top-post-battery-disconnect-switch-12-48-v-battery-power](https://www.desertcart.kr/products/543942458-top-post-battery-disconnect-switch-12-48-v-battery-power) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-08-03*