---
product_id: 498806162
title: "Top Post Battery Disconnect Switch 12V, Ampper Quick Disconnect Battery Cut Off Switch Battery Shut Off Kill Switch for Car (1 Pack)"
brand: "ampper"
price: "$U1436"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/498806162-top-post-battery-disconnect-switch-12v-ampper-quick-disconnect-battery
store_origin: UY
region: Uruguay
---

# 125A Power Rating IP65 Protection Easy Twist Operation Top Post Battery Disconnect Switch 12V, Ampper Quick Disconnect Battery Cut Off Switch Battery Shut Off Kill Switch for Car (1 Pack)

**Brand:** ampper
**Price:** $U1436
**Availability:** ✅ In Stock

## Summary

> 🔧 Twist to Disconnect, Power to Protect!

## Quick Answers

- **What is this?** Top Post Battery Disconnect Switch 12V, Ampper Quick Disconnect Battery Cut Off Switch Battery Shut Off Kill Switch for Car (1 Pack) by ampper
- **How much does it cost?** $U1436 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/498806162-top-post-battery-disconnect-switch-12v-ampper-quick-disconnect-battery)

## 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

- • **💪 Heavy-Duty Design:** Crafted from solid brass, this switch is rust and corrosion-resistant for long-lasting durability.
- • **🔋 Secure Your Power:** Isolate your battery with a simple twist, ensuring safety and peace of mind.
- • **⚡ Effortless Installation:** Knob-type design makes installation a breeze—no tools required!
- • **🚤 Versatile Compatibility:** Perfect for cars, RVs, and boats with standard top post terminals—your all-in-one solution!
- • **🌍 Eco-Friendly Power Management:** Eliminate battery drain when not in use, contributing to a greener planet.

## Overview

The Ampper Top Post Battery Disconnect Switch is a robust and user-friendly isolator designed for 12V systems. With a 125A current rating and IP65 protection, it ensures safety and reliability for your vehicle, RV, or boat. Its heavy-duty brass construction guarantees durability, while the easy twist operation allows for quick and convenient battery management.

## Description

Top Post Battery Disconnect Switch 12V, Ampper Quick Disconnect Battery Cut Off Switch Battery Shut Off Kill Switch for Car (1 Pack)

## Features

- Compatible: used for top post terminal, 15-17 mm cone battery negative post only, DC 12 V system, rated current: 125 A, On/Off 2 position.
- Convenience: knob type, easy to install & simple to use. Loose / twist of the knob, 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.
- Used for Car, Vehicle, RV and Boat batteries which have a standard 15-17 mm cone top post terminal, also used for electrical equipment.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Operation Mode | Off,Twist |
| Current Rating | 125 Amps |
| Operating Voltage | 12 Volts |
| Connector Type | Clamp |
| Brand | Ampper |
| Item dimensions L x W x H | 8.4 x 3.8 x 3.8 Centimeters |
| Circuit Type | 2-way |
| Actuator Type | Rotary |
| International Protection Rating | IP65 |
| Number of Positions | 2 |
| Lower Temperature Rating | 1 Degrees Celsius |
| Controller Type | Push Button |
| Connectivity Protocol | X-10 |
| Colour | Top Post |
| Net Quantity | 1 count |
| Manufacturer | Ampper |
| Model | Am-CBS21 |
| Product Dimensions | 8.38 x 3.81 x 3.81 cm; 124.74 g |
| Item model number | Am-CBS21 |
| Exterior | metal |
| Manufacturer Part Number | Am-CBS21 |
| Volume | 136 Cubic Centimetres |
| Size | Battery Switch |
| Special Features | eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely, used for top post, used for car battery systems, isolate and secure the electrical system |
| Mirror Lighting Type | non-illuminated |
| Voltage | 12 Volts |
| Manufacturer | Ampper |
| Country of Origin | USA |
| Item Weight | 125 g |

## Product Details

- **Operation Mode:** ON-OFF
- **Current Rating:** 125 Amps
- **Operating Voltage:** 12 Volts
- **Contact Type:** Normally Open
- **Connector Type:** Clamp
- **Brand:** Ampper
- **Terminal:** Top Post
- **Item dimensions L x W x H:** 3.3 x 1.5 x 1.5 inches
- **Circuit Type:** 2-way
- **Contact Material:** Stainless Steel

## Images

![Top Post Battery Disconnect Switch 12V, Ampper Quick Disconnect Battery Cut Off Switch Battery Shut Off Kill Switch for Car (1 Pack) - Image 1](https://m.media-amazon.com/images/I/61-5Pr9QAXS.jpg)
![Top Post Battery Disconnect Switch 12V, Ampper Quick Disconnect Battery Cut Off Switch Battery Shut Off Kill Switch for Car (1 Pack) - Image 2](https://m.media-amazon.com/images/I/71PeQHY0FEL.jpg)
![Top Post Battery Disconnect Switch 12V, Ampper Quick Disconnect Battery Cut Off Switch Battery Shut Off Kill Switch for Car (1 Pack) - Image 3](https://m.media-amazon.com/images/I/719Cr3VgVlL.jpg)
![Top Post Battery Disconnect Switch 12V, Ampper Quick Disconnect Battery Cut Off Switch Battery Shut Off Kill Switch for Car (1 Pack) - Image 4](https://m.media-amazon.com/images/I/61bvDQz4uvL.jpg)
![Top Post Battery Disconnect Switch 12V, Ampper Quick Disconnect Battery Cut Off Switch Battery Shut Off Kill Switch for Car (1 Pack) - Image 5](https://m.media-amazon.com/images/I/61qM9B3KO3L.jpg)

## Available Options

This product comes in different **Colour, Size** options.

## Questions & Answers

**Q: Does the green knob need to be removed in order to disconnect the battery?**
A: Not removed. Simply screw tight to engage battery use and loosen to disengage. The green knob can not fully be removed or misplaced.

**Q: What kind of metal is this made out of?**
A: It is made of cast zinc, plated with a thin layer of a yellow metal that is similar to brass or bronze.
Cast zinc can easily crack under stress as a few reviews mentioned it.

**Q: Should the be mounted on the positive terminal or the negative terminal?**
A: Must be installed ONLY ON THE NEGATIVE  terminal of the battery!!!
The reason is safety.  The positive terminal has a red plastic cover to protect against accidental shorts which can be very dangerous. The negative terminal does not have a plastic cover because if it shorts to a grounded metal part nothing would happen.
If you install it on the positive terminal, you will have exposed metal that can accidentally be shorted.
Hope my answer also provides the reasoning such that a user will understand the “why” not just the “how”.

**Q: If you have dual batteries do you need two switches**
A: Yes, or choose 1-2-both-off switch: https://www.amazon.com/dp/B07PN9CT9H

## Frequently Bought Together

- Top Post Battery Disconnect Switch, Ampper Battery Master Switch Isolator for Power Disconnect Cut Off (1 Pack)
- Side Post Battery Disconnect Switch, Ampper Battery Master Switch Isolator for Power Disconnect Cut Off (with Long Bolt)
- Top Post Battery Disconnect Switch - Quick Disconnect Battery Cut Off Switch for Car Truck Marine RV and Electrical Equipment - 12V/125A - Red

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-27*