---
product_id: 225216885
title: "Top Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle (Negative,Vertical)"
brand: "cozyehoo"
price: "3746 kr"
currency: ISK
in_stock: true
url: https://www.desertcart.is/products/225216885-top-post-knife-blade-master-switch-12v-24v-battery-disconnect
store_origin: IS
region: Iceland
---

# 750A max current Vertical & adjustable install Brass corrosion-resistant build Top Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle (Negative,Vertical)

**Brand:** cozyehoo
**Price:** 3746 kr
**Availability:** ✅ In Stock

## Summary

> 🔋 Cut the power, not your freedom – master your battery with ease!

## Quick Answers

- **What is this?** Top Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle (Negative,Vertical) by cozyehoo
- **How much does it cost?** 3746 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/225216885-top-post-knife-blade-master-switch-12v-24v-battery-disconnect)

## Best For

- cozyehoo enthusiasts

## Why This Product

- Trusted cozyehoo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Premium brass construction ensures superior corrosion resistance and conductivity
- • **Energy Saver Mode:** Eliminates battery drain by fully disconnecting power when not in use
- • **Powerhouse Protection:** Handles up to 750A max current for heavy-duty vehicles and marine use
- • **Effortless Installation:** Adjustable vertical knife switch design for quick, hassle-free setup
- • **Universal Compatibility:** Works seamlessly with 6V, 12V, and 24V top post negative battery terminals

## Overview

The Top Post Knife Blade Master Switch is a heavy-duty, brass-made battery disconnect switch designed for negative top post terminals. Supporting up to 750A max current and compatible with 6V, 12V, and 24V systems, it offers easy vertical installation and effectively prevents battery drain and unauthorized use across cars, trucks, RVs, boats, and more.

## Description

Top Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle (Negative,Vertical)

## Features

- 【COMPATIABLE】This knife-blade battery disconnect switch is suitable for TOP POST TERMINAL, battery NEGATIVE post only. Maximum Current: 750A, Rated Current: 250A. 6v 12v 24v car truck, bus, RV, Boat, trailer battery
- 【TOP LEVEL & HEAVY DUTY 】This top post battery disconnect switch is made of brass material, corrosion resistance, conductive performance is good, durably made for safety use
- 【EASY TO INSTALL】This battery doctor knife switch for top post batteries can be adjusted into a vertical knife switch through the bottom of the screw, easy to install & simple to use. Switch the knife, then power will cut
- 【SAVE ELECTRYCITY】This knife blade master switch is used for the battery to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, stop unwanted battery drain and prevent theft or unauthorized use. Widely used for car, truck, boat or RV battery, also other electrical equipment's battery
- BUY WITH CONFIDENCE: We are so confident you'll think we have the satisfied battery disconnect switch on the market. If you have any problem about our product, please feel free to give us a message and we will do anything for you to make the thing right. We go out of our way to make sure every customer is happy and satisfied with our product and service.

## Product Details

- **Operation Mode:** Off
- **Current Rating:** 250 Amps
- **Operating Voltage:** 12 Volts
- **Connector Type:** Screw
- **Brand:** COZYEHOO
- **Item dimensions L x W x H:** 3.7 x 2.64 x 0.8 inches
- **Circuit Type:** 1-way
- **Mounting Type:** Surface Mount
- **Actuator Type:** Rotary
- **Contact Material:** Brass

## Images

![Top Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle (Negative,Vertical) - Image 1](https://m.media-amazon.com/images/I/61-BT1v4vcL.jpg)
![Top Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle (Negative,Vertical) - Image 2](https://m.media-amazon.com/images/I/618-BB7tFkL.jpg)
![Top Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle (Negative,Vertical) - Image 3](https://m.media-amazon.com/images/I/610-iRq9V7L.jpg)
![Top Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle (Negative,Vertical) - Image 4](https://m.media-amazon.com/images/I/61f42RPliLL.jpg)
![Top Post Knife Blade Master Switch 12V 24V Battery Disconnect Cut Off Shut Off for Auto Car RV-Marine Boat Truck Vehicle (Negative,Vertical) - Image 5](https://m.media-amazon.com/images/I/619lVwf0fdL.jpg)

## Available Options

This product comes in different **Style** options.

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**Shop now:** [https://www.desertcart.is/products/225216885-top-post-knife-blade-master-switch-12v-24v-battery-disconnect](https://www.desertcart.is/products/225216885-top-post-knife-blade-master-switch-12v-24v-battery-disconnect)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-25*