---
product_id: 136999375
title: "90015A 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: "€ 32.21"
currency: EUR
in_stock: true
reviews_count: 13
category: "Nilight"
url: https://www.desertcart.com.cy/products/136999375-90015a-battery-switch-12-48v-waterproof-heavy-duty-battery-power
store_origin: CY
region: Cyprus
---

# IP66 waterproof & corrosion resistant 275A continuous current rating Universal 12-48V compatibility 90015A 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:** € 32.21
**Availability:** ✅ In Stock

## Summary

> ⚡ Cut the power, not the adventure — stay in control with Nilight!

## Quick Answers

- **What is this?** 90015A 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?** € 32.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/136999375-90015a-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

- • **Safety First, Always:** Rear insulated cover and heavy-duty ABS plastic housing prevent shorts and electrical hazards effortlessly.
- • **Power Control Mastery:** Seamlessly isolate your battery with a robust 275A continuous current capacity for heavy-duty demands.
- • **Universal Compatibility:** Works flawlessly across 12-48V systems—perfect for cars, boats, RVs, and battery banks.
- • **Built to Brave the Elements:** IP66-rated waterproof housing ensures reliable performance in marine, RV, and outdoor environments.
- • **Effortless Installation & Operation:** Compact design with included mounting bolts and intuitive On/Off rotary switch for quick setup and use.

## Overview

The Nilight 90015A Battery Switch is a heavy-duty, waterproof power disconnect switch designed for 12-48V DC systems. Rated for 275A continuous and up to 1250A momentary current, it features a durable ABS housing with insulated terminals to prevent shorts. Ideal for cars, boats, RVs, and battery banks, this compact switch offers reliable, safe battery isolation to eliminate power drain when not in use. IP66 protection and included mounting hardware make it a versatile, long-lasting solution for professional-grade power management.

## Description

Specifications: 1, On/Off 2 positions. 2, Rear cover insulates terminals against any short of circuits. 3, ABS plastic housing, durable made for safety use. 4, Copper terminal studs with nuts and washers. 5, 4 mounting screw holes. 6, 275A continuous at DC 12V, 455A Intermittent at DC 12V, 1250A momentary at DC 12V. 7, Used for DC 12 - 48V systems to isolate and secure the electrical system. 8, Eliminate any power draw from the battery when vehicle or boat is not in use. 9, Size: 2. 68" x 2. 68" x 3. 07". 10, Disconnects the battery safely. 11, Universal used for Car, Vehicle, RV and Boat. Package included: 1 x On/Off battery switch. 4 mounting bolts.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.

Review: Does what a cutoff switch should do. Robust enough for big loads or light loads. Piece of mind. - Pretty robust/chunky heavy metal here folks. It will definitely handle some current, and should last quite a good long while. There's not much to go wrong. The coating on the metal appears good quality, not chintzy at all. Large bolts/studs, you're medium eye connectors might not be big enough, but always good to be overkill on gage, right!? So many ways to use this, but as a general rule, try to place as close to your battery source as possible--this just helps to ensure you have no other bleeds/consumers of your battery, and that you get them all, 100% of the time. If you relocate the switch further away, you can be successful, but trust me, there'll come a day when it's just too convenient to wire a new thing directly to the battery and bypass the switch--so just save yourself that future dilemma and make this switch the FIRST and ONLY connected device to your battery. Use a low gage jumper from the positive post to the switch, something like 8 or 10 gage for regular accessories, or maybe even lower if you're going to run a Trolling motor. Either way you wire this, you can count on it. Not much more you can ask of a cutoff, good connectivity for low and high amperage uses. Easy to use, easy on the wallet, easy to install. Great Value for it's functionality.
Review: Power Control Made Simple: Nilight 1-2-Both-Off Battery Switch - As a boat owner, managing power distribution efficiently is essential for a smooth and safe sailing experience. The Nilight 1-2-Both-Off Battery Switch has revolutionized how I control my vessel's electrical system, and I'm thrilled to share my experience with this ingenious product. First and foremost, the versatility of this battery switch is unmatched. With its 1-2-Both-Off functionality, I have complete control over which batteries are connected to my boat's electrical system. Whether I need to isolate a single battery for maintenance or balance the load between multiple batteries for optimal performance, this switch offers unparalleled flexibility. Installation was a breeze, thanks to the straightforward design and clear instructions provided by Nilight. I was able to mount the switch securely in a convenient location and wire it into my boat's electrical system with ease. The sturdy construction and quality materials inspire confidence, ensuring reliable performance even in harsh marine environments. The ergonomic design of the switch makes operation intuitive and hassle-free. The clearly labeled positions—1, 2, Both, and Off—make it easy to select the desired battery configuration quickly and accurately. Whether I'm starting the engine, charging multiple batteries simultaneously, or shutting down the entire electrical system, the Nilight battery switch simplifies the process with just a flick of the wrist. Durability is another standout feature of this product. Built to withstand the demands of marine use, the Nilight battery switch is resistant to corrosion, moisture, and vibration, ensuring long-lasting reliability even in the harshest conditions. I have peace of mind knowing that my electrical system is in good hands with this robust and dependable switch. Safety is always a top priority on the water, and the Nilight battery switch delivers in this regard as well. By providing a convenient means to disconnect the batteries from the electrical system, it helps prevent accidental discharge, electrical fires, and other potential hazards, keeping both my boat and crew safe at all times. In conclusion, the Nilight 1-2-Both-Off Battery Switch is a game-changer for boat owners seeking a reliable and versatile solution for power management. With its ease of installation, intuitive operation, durability, and safety features, it's an essential addition to any marine electrical system. I highly recommend this battery switch to fellow boating enthusiasts who value efficiency, reliability, and peace of mind on the water.

## 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 | Rotary |
| Best Sellers Rank | #600 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Battery Switches |
| Brand | Nilight |
| Circuit Type | 1-way |
| Color | On-Off Switch 275A |
| Compatible Devices | Car, Marine Boat, RV, Camper, Travel Trailer, Truck, ATV, UTV, Battery Banks |
| Connectivity Protocol | X-10 |
| Connector Type | Plug In |
| Contact Material | Alloy Steel |
| Contact Type | Normally Closed |
| Control Method | Touch |
| Control Type | On/Off |
| Current Rating | 455 Amps |
| Date First Available | June 12, 2019 |
| Global Trade Identification Number | 00812227031862 |
| International Protection Rating | IP66 |
| Item Weight | 1.6 ounces |
| Item dimensions L x W x H | 3.86 x 2.87 x 2.83 inches |
| Item model number | 90015A |
| Lower Temperature Rating | 1 Degrees Celsius |
| Manufacturer | Nilight |
| Number of Items | 1 |
| Number of Positions | 2 |
| Operating Voltage | 48 Volts |
| Operation Mode | ON-OFF |
| Product Dimensions | 3.86 x 2.87 x 2.83 inches |
| Terminal | Marine |
| UPC | 812227031862 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 1 Degrees Celsius |
| Vehicle Service Type | ATV, Passenger Car, Trailer, Truck, UTV |
| Wattage | 21760 watts |

## Product Details

- **Brand:** Nilight
- **Connector Type:** Plug In
- **Contact Type:** Normally Closed
- **Current Rating:** 455 Amps
- **Item dimensions L x W x H:** 3.86 x 2.87 x 2.83 inches
- **Material:** Copper
- **Operating Voltage:** 48 Volts
- **Operation Mode:** ON-OFF
- **Switch Type:** Rotary
- **Terminal:** Marine

## Images

![90015A 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)

## Available Options

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

## 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

### ⭐⭐⭐⭐⭐ Does what a cutoff switch should do. Robust enough for big loads or light loads. Piece of mind.
*by B***F on December 3, 2025*

Pretty robust/chunky heavy metal here folks. It will definitely handle some current, and should last quite a good long while. There's not much to go wrong. The coating on the metal appears good quality, not chintzy at all. Large bolts/studs, you're medium eye connectors might not be big enough, but always good to be overkill on gage, right!? So many ways to use this, but as a general rule, try to place as close to your battery source as possible--this just helps to ensure you have no other bleeds/consumers of your battery, and that you get them all, 100% of the time. If you relocate the switch further away, you can be successful, but trust me, there'll come a day when it's just too convenient to wire a new thing directly to the battery and bypass the switch--so just save yourself that future dilemma and make this switch the FIRST and ONLY connected device to your battery. Use a low gage jumper from the positive post to the switch, something like 8 or 10 gage for regular accessories, or maybe even lower if you're going to run a Trolling motor. Either way you wire this, you can count on it. Not much more you can ask of a cutoff, good connectivity for low and high amperage uses. Easy to use, easy on the wallet, easy to install. Great Value for it's functionality.

### ⭐⭐⭐⭐⭐ Power Control Made Simple: Nilight 1-2-Both-Off Battery Switch
*by N***N on April 16, 2024*

As a boat owner, managing power distribution efficiently is essential for a smooth and safe sailing experience. The Nilight 1-2-Both-Off Battery Switch has revolutionized how I control my vessel's electrical system, and I'm thrilled to share my experience with this ingenious product. First and foremost, the versatility of this battery switch is unmatched. With its 1-2-Both-Off functionality, I have complete control over which batteries are connected to my boat's electrical system. Whether I need to isolate a single battery for maintenance or balance the load between multiple batteries for optimal performance, this switch offers unparalleled flexibility. Installation was a breeze, thanks to the straightforward design and clear instructions provided by Nilight. I was able to mount the switch securely in a convenient location and wire it into my boat's electrical system with ease. The sturdy construction and quality materials inspire confidence, ensuring reliable performance even in harsh marine environments. The ergonomic design of the switch makes operation intuitive and hassle-free. The clearly labeled positions—1, 2, Both, and Off—make it easy to select the desired battery configuration quickly and accurately. Whether I'm starting the engine, charging multiple batteries simultaneously, or shutting down the entire electrical system, the Nilight battery switch simplifies the process with just a flick of the wrist. Durability is another standout feature of this product. Built to withstand the demands of marine use, the Nilight battery switch is resistant to corrosion, moisture, and vibration, ensuring long-lasting reliability even in the harshest conditions. I have peace of mind knowing that my electrical system is in good hands with this robust and dependable switch. Safety is always a top priority on the water, and the Nilight battery switch delivers in this regard as well. By providing a convenient means to disconnect the batteries from the electrical system, it helps prevent accidental discharge, electrical fires, and other potential hazards, keeping both my boat and crew safe at all times. In conclusion, the Nilight 1-2-Both-Off Battery Switch is a game-changer for boat owners seeking a reliable and versatile solution for power management. With its ease of installation, intuitive operation, durability, and safety features, it's an essential addition to any marine electrical system. I highly recommend this battery switch to fellow boating enthusiasts who value efficiency, reliability, and peace of mind on the water.

### ⭐⭐⭐⭐⭐ Works well
*by K***M on December 18, 2025*

Easy installation. Good quality.

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---

*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-26*