---
product_id: 45776791
title: "Battery Disconnect Switch 12V - 48V, Marine Battery Switch Disconnect Power Cut Shut Off for Car, Vehicle, RV and Boat (On/Off)"
brand: "ampper"
price: "$31.77"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/45776791-battery-disconnect-switch-12v-48v-marine-battery-switch-disconnect-power
store_origin: US
region: United States of America
---

# 275A continuous current 12-48V system compatibility Easy copper terminal installation Battery Disconnect Switch 12V - 48V, Marine Battery Switch Disconnect Power Cut Shut Off for Car, Vehicle, RV and Boat (On/Off)

**Brand:** ampper
**Price:** $31.77
**Availability:** ✅ In Stock

## Summary

> 🔋 Master your power. Disconnect with confidence.

## Quick Answers

- **What is this?** Battery Disconnect Switch 12V - 48V, Marine Battery Switch Disconnect Power Cut Shut Off for Car, Vehicle, RV and Boat (On/Off) by ampper
- **How much does it cost?** $31.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/45776791-battery-disconnect-switch-12v-48v-marine-battery-switch-disconnect-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

- • **Safety-First Design:** Durable ABS housing with insulated rear cover prevents shorts and ensures secure disconnection.
- • **Powerhouse Performance:** Handles up to 275A continuous current for reliable heavy-duty use.
- • **Effortless Installation:** Copper terminal studs with included mounting bolts make setup quick and hassle-free.
- • **Battery Drain Eliminator:** Completely cuts off power draw when your vehicle or boat is idle—protect your battery life.
- • **Universal Voltage Compatibility:** Seamlessly works with 12V to 48V DC systems across vehicles, RVs, and boats.

## Overview

The Ampper Battery Disconnect Switch is a robust, easy-to-install power isolator designed for 12V to 48V DC systems. Featuring a heavy-duty ABS plastic housing, copper terminals, and a high current rating of 275A continuous (up to 1250A momentary), it safely cuts off battery power to prevent drain and electrical shorts in cars, RVs, boats, and other vehicles.

## Description

Ampper Battery Disconnect Switch 12V - 48V, Marine Battery Switch Disconnect Power Cut Shut Off for Car, Vehicle, RV and Boat (On/Off)

## Features

- Heavy Duty: ABS plastic housing, durable made for safety use, rear cover insulates terminals against any short of circuits, equiped with 4 sets of bolts.
- Specification: On/Off 2 positions, 275 A continuous at DC 12V, 455 A intermittent at DC 12V, 1250 A momentary at DC 12V.
- Compatible: used for DC 12 - 48 V systems to isolate and secure the electrical system, can stand alone or be locked together with other switch.
- Purpose: eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely.
- Copper terminal stud size: 3/8" (10 mm) x 2, very easy to install, universal used for car, vehicle, Rv and boat, also electrical equipment's switch.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Operation Mode | Off |
| Current Rating | 275 Amps |
| Operating Voltage | 48 Volts |
| Connector Type | Screw |
| Brand | Ampper |
| Terminal | Screw |
| Item Dimensions LxWxH | 2.76 x 3.74 x 2.95 inches |
| Circuit Type | 1-way |
| Mounting Type | Surface Mount |
| Actuator Type | Rotary |
| Contact Material | Copper |
| International Protection Rating | IP65 |
| Number of Positions | 2 |
| Connectivity Protocol | X-10 |
| Color | On-Off |
| Unit Count | 1 Count |
| Manufacturer | Ampper |
| Item Weight | 9.3 ounces |
| Product Dimensions | 2.76 x 3.74 x 2.95 inches |
| Item model number | Am-CBS01 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | Am-CBS01 |
| Special Features | eliminate any power draw from the battery when vehicle or boat is not in use, electrical equipment's switch, Used for DC 12 - 48V systems, disconnects the battery safely, isolate and secure the electrical system |
| Voltage | 12 Volts |

## Product Details

- **Operation Mode:** ON-OFF
- **Current Rating:** 275 Amps
- **Operating Voltage:** 12 Volts
- **Contact Type:** Normally Open
- **Connector Type:** Screw
- **Brand:** Ampper
- **Terminal:** Screw
- **Item dimensions L x W x H:** 2.76 x 3.74 x 2.95 inches
- **Circuit Type:** 2-way
- **Mounting Type:** Surface Mount

## Images

![Battery Disconnect Switch 12V - 48V, Marine Battery Switch Disconnect Power Cut Shut Off for Car, Vehicle, RV and Boat (On/Off) - Image 1](https://m.media-amazon.com/images/I/718K1yiT9KL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is there a bottom or back?**
A: Yes the switch is fully enclosed except for the side you enter with the wire

**Q: These are listed as being rated for 275A continuous, but the manual this switch comes with says its only 200A continuous. Which is the correct rating?**
A: Thank you for your purchase.
The item you recieved is On-Off battery switch, and the pamphlet you recieved is 1-2-Both-Off battery switch, so sorry for the issue casued to you, the pamphlet may be mixed by our worker.
Fot the item you purchased X001H8MQTX (On-Off battery switch), the continuous rating is : 275Amps DC.

Also below are some tips for you to install the switch:
The 2 terminals are same, no negative and positive. Just like a switch, connected to the switch on both sides so when you flip the switch it cuts the circuit. 
More, recommend to install this cut off switches on the negative, not the positive (lower current in negative, will be more safety). 
The switch can be install in the negative wire, another short battery cable or cut existing cable and attach terminals on each end. 

Hope the info can help you.

**Q: How far from battery can it be installed?**
A: Mine is 2 feet from the battery, I don't think it matters. Your cable size will have to increase the further away from the battery that you install it.

**Q: If the switch is on off (red) is the battery not drawing or the disconnect is not engaged and battery still drawing? Over thinking I'm sure.**
A: battery 1 to switch,battery 2 to load side if you are using battery 2 too power stuff. if switch is off then battery 2 will power your things and not draw from main battery 1. To charge battery 2 turn switch to on then turn off when its fully charged if that makes sense

## Frequently Bought Together

- Ampper Battery Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator for Car, Vehicle, RV and Boat (On/Off)
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-04*