---
product_id: 251913051
title: "Nilight Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty"
brand: "nilight"
price: "730 kr"
currency: DKK
in_stock: true
reviews_count: 5
category: "Nilight"
url: https://www.desertcart.dk/products/251913051-nilight-battery-switch-12-48v-waterproof-heavy-duty-battery-power
store_origin: DK
region: Denmark
---

# IP66 waterproof rating 275A continuous current Heavy-duty ABS housing Nilight Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty

**Brand:** nilight
**Price:** 730 kr
**Availability:** ✅ In Stock

## Summary

> 🔋 Cut the power, not the adventure – master your battery like a pro!

## Quick Answers

- **What is this?** Nilight Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty by nilight
- **How much does it cost?** 730 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/251913051-nilight-battery-switch-12-48v-waterproof-heavy-duty-battery-power)

## Best For

- nilight enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Control:** Simple On/Off push-button operation with included stainless steel mounting hardware for quick installation.
- • **Safety First, Always:** Durable ABS plastic housing with insulated rear cover prevents shorts and enhances safety.
- • **Universal Compatibility:** Works seamlessly with 12-48V DC systems across cars, RVs, boats, and more.
- • **Power Up with Confidence:** Handles up to 275A continuous current for robust battery management.
- • **Built to Brave the Elements:** IP66 waterproof design ensures reliable performance in marine and outdoor environments.

## Overview

The Nilight Battery Switch is a heavy-duty, waterproof battery isolator designed for 12-48V DC systems, delivering up to 275A continuous current. Its rugged ABS housing and IP66 rating make it perfect for cars, RVs, marine boats, and outdoor vehicles, ensuring safe and easy battery disconnection to prevent power drain. With a straightforward On/Off push-button and included mounting hardware, it’s the ultimate power control solution backed by a 2-year warranty.

## Description

Nilight Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty : desertcart.in: Sports, Fitness & Outdoors

Review: Not only allows for the primary and secondary battery to be ganged together in parallel during the use of a large inverter with the engine running, it also allows the secondary battery to start the vehicle with the primary battery disconnected. Nicely manufactured, easy to install. Comes with stainless mounting hardware.
Review: Vendedor cumplido, buena calidad

## Features

- Heavy Duty: ABS plastic housing, durable made for safety use, rear cover insulates terminals against any short of circuits, equipped with 4 sets of bolts.
- Operation: 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 - 48V systems to isolate and secure the electrical system, can stand alone or be locked together with other switch.Its purpose is to eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely.
- Widely used for car, marine boat, RV, camper, travel trailer, truck, ATV, UTV, battery banks and other devices.
- Package include:1x On/Off battery switch,4 bolts incuded.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07T288VN8 |
| Actuator Type | Push Button |
| Are batteries included? | No |
| Best Sellers Rank | #165,608 in Sports, Fitness & Outdoors ( See Top 100 in Sports, Fitness & Outdoors ) #114 in Electrical Equipment Battery Switches |
| Brand | Nilight |
| Circuit Type | 2-way |
| Colour | Black |
| Compatible Device | Car, Marine Boat, RV, Camper, Travel Trailer, Truck, ATV, UTV, Battery Banks |
| Connectivity Protocol | Wi-Fi |
| Connector Type | Screws |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | Push Button |
| Controller Type | Push Button |
| Country of Origin | USA |
| Current Rating | 275 Amps |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,699) |
| Date First Available | 20 June 2019 |
| Generic Name | Nilight Battery Switch12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty |
| Global Trade Identification Number | 00812227031862 |
| Included Components | On/Off battery switch |
| International Protection Rating | IP66 |
| Item Dimensions LxWxH | 9.8 x 7.3 x 7.2 Centimeters |
| Item Height | 2.83 Inches |
| Item Weight | 45.4 g |
| Item Width | 2.87 Inches |
| Item dimensions L x W x H | 9.8 x 7.3 x 7.2 Centimeters |
| Item model number | 90015A |
| Manufacturer | Nilight |
| Model number | 90015A |
| Net Quantity | 1.0 Count |
| Number of Items | 1 |
| Number of Positions | 2 |
| Operating Voltage | 48 Volts |
| Operation Mode | ON-OFF |
| Product Dimensions | 9.8 x 7.29 x 7.19 cm; 45.36 g |
| Specific Product Use | personal |
| Terminal | Screw |
| Upper Temperature Rating | 1 Degrees Celsius |
| Voltage | 12 Volts |
| Wattage | 21760 Watts |

## Product Details

- **Connector Type:** Screws
- **Contact Type:** Normally Open
- **Current Rating:** 275 Amps
- **Operating Voltage:** 48 Volts
- **Operation Mode:** ON-OFF

## Images

![Nilight Battery Switch 12-48V Waterproof Heavy Duty Battery Power Cut Master Switch Disconnect Isolator for Car Vehicle RV and Marine Boat (On/Off),2 Years Warranty - Image 1](https://m.media-amazon.com/images/I/61fKk7hjAnL.jpg)

## Questions & Answers

**Q: I would like to use this to cut the power on my winch when not it use. Does anyone know if this will handle the draw when the winch is in use?**
A: Check your winches max current draw at it's max pull. Most 10k winches can go over 300-amps easy some over 350-amps. 

Always use switches, contact points and terminals that can handle more than your devices rated maximum current draw and max voltage, even if it's only 10% more. Don't size for nominal loads, size for max current and max voltage plus a safety factor. 

Wire charts (current to awg wire size) is a safe minimum size. If it says 4awg wire, go to 2awg. Copper is cheap and it will lower your circuits overall resistance and current draw while being safer. Do this and you wont get suprised the general wire chart that is probably written for a very spoecific type of wire strand size, jacket, etc. 

You can go down in fuse/breaker size, it will just blow/trip more often. You can go up one fuse size and, at this current level, that means only 10-amps more. So if your winch can draw a max of 300-amps, the largest fuse you should use is 310-amps. 

Momentary is very subjective. Without a quatitative number, size components for maximum current draw. 

Also, NEVER put a switch on a Negative, Common or Neutral wire.

**Q: can this be used with 4/0 cable lugs**
A: The switch doesn't care about the lug current capacity, just about physical characteristics of the lug, which unfortunately is not standardized.  If the lug is bulky at its connecting area to the cable, some allowance might have to be made in mounting.  The lug needs a fairly large hole opening where it connects to the switch, at least a 7/16 inch hole.  The metal area around the hole opening of the lug can't be too large or it will short out to the connector on the other side of the switch, so some grinding of the lug's squareness might be necessary.  Available thread on the switch terminals is more than adequate for a fairly thick lug.

**Q: I bought this to hook up to my rv battery case. i assumed it would come with instructions. does anyone have a good website showing how to hook it up?**
A: Really no need for instructions. I installed it in my camper, its purpose is to disrupt electrical connection. If you have one main power cable then connect from the battery to the switch and then main power to switch. If there's a bunch of connections to the power side and not sure then you can also install the switch on the negative side which usually goes to one chassis ground.

**Q: Will the switch prevent auto theft**
A: Only if the theft doesn’t know where the kill switch is. If it is placed in an accessible area they can still take vehicle.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by L***N on 28 June 2021*

Not only allows for the primary and secondary battery to be ganged together in parallel during the use of a large inverter with the engine running, it also allows the secondary battery to start the vehicle with the primary battery disconnected. Nicely manufactured, easy to install. Comes with stainless mounting hardware.

### ⭐⭐⭐⭐⭐ Review
*by R***H on 16 July 2025*

Vendedor cumplido, buena calidad

### ⭐⭐⭐⭐⭐ Review
*by C***T on 12 December 2025*

Stabil und wertig gemacht. Schrauben und Muttern nach DIN.

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**Shop now:** [https://www.desertcart.dk/products/251913051-nilight-battery-switch-12-48v-waterproof-heavy-duty-battery-power](https://www.desertcart.dk/products/251913051-nilight-battery-switch-12-48v-waterproof-heavy-duty-battery-power)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-25*