3 Best Battery Disconnect Switch(Buying Guide) 2024

Although this product is not very popular among car owners, the battery disconnect switch plays an important role in preventing battery drain faults, fire, and car theft. Disconnect switches are often used on yachts and boats, Most of us also use these switches in our vehicles to ensure that the battery does not face any problem if the vehicle is to be parked or stored for a long period of time.

If you want to avoid this problem and you are looking for a better battery disconnect idea, you have to deal with some drain and power loss. Okay, now we move on to solving this problem. Here we will guide you about the three best battery point switches.

Also, if you want to know the details about disconnecting and installing them, be sure to check out the buying guide at the end of this guide. Now we start with the list.

Best Battery Disconnect Switch Comparison Table

ProductFeaturesCheck Out The Price
– High Current
– 12 V & 24 V
– Heavy-Duty Body
– Face Plate
Fastronix Solutions Master Battery Disconnect Switch Kit
– 12 V – 48 V
– ABS Plastic Housing
– Multiple Applications
– Convenient 
Ampper Master Battery Switch
– 12 V – 24 V Batteries
– Heavy Duty
– Wide Application
– Aluminum Housing
Ampper 12-24V Master Battery Disconnect Switch

Best Overall

Fastronix Solutions Master Battery Disconnect Switch Kit

Highlighted Features

  • High current
  • 12V and 24V
  • Heavy duty body
  • Face plate
  • On/Off position

The first and best recommendation is Fastronix Solutions, a very simple yet brilliant product, and the Master Battery Disconnect Switch Kit, a top-selling professional-grade product that you will surely love.

High-quality durable and long-lasting construction featuring a heavy-duty metal case and heavy-duty handle keeps internal components from being exposed and protects against harsh conditions. Those that may come with stock vehicles consist of a black face plate with clear on and off positions.

Safety Precautions Features The handle is spring-loaded to prevent the handle from accidentally moving into the on position. The handle also makes a clicking sound when it is turned to a position to notify the user. It has a heavy-duty heatsink to prevent any fire or overheating.

Two mounting configurations are available, a thin panel and a thick panel. The thin panel has a maximum thickness of 1/4 inches and the thick has a maximum thickness of 5/8 inches. It has copper lugs and rubber terminal insulators. These ingredients play an important role in protecting against any fire.

A favorite among recreational vehicle owners, the Fasttronics Solutions battery disconnection switch should be the first product you consider if you want the best in batteries. Its high price only makes it worse, on the contrary, you will find switches in the market that are much cheaper.


  • Heavy-duty construction, metal case, & handle.
  • Thermal protection with heat sink & insulator.
  • Professional Grade Disconnect Switch.


  • Expensive compared to other products.
  • Not weatherproof.

Best Budget

Ampper Master Battery Switch

Highlighted Features

  • 12v & 48v
  • ABS plastic housing
  • On/Off position
  • Multiple applications
  • Easy

A budget option from Amppere, a brand that offers a variety of high-end battery disconnect switch products, this item is one of their affordable options for a wider audience. However, these heavy-duty disconnect switch work very well and serve their purpose effectively.

Features heavy-duty construction Housing made of durable ABS plastic Specially designed for maximum safety Has a back cover that protects against short circuits. It insulates the terminals and can be used as a stand-alone switch or in combination with other switches.

It is compatible with 12V, 24V, and 48V batteries Standard and perfect for a wide range of applications Cars RVs Trucks SUVs Vans Boats. It disconnects power from the battery and when the vehicle is not in use Eliminates any drain.

A universal battery disconnect switch, for easy and intuitive installation. It has two copper terminal studs with a size of 3/8 inches (10 mm) Set in place with four sets of bolts Dust protection with side pads that are dustproof.

This was the cheapest item on this list. As good as the others. The only downside is the plastic housing. Most high-end disconnect switch products have a metal housing rather than thermoplastic.


  • Durable & safe to use.
  • Heavy-duty construction for tough conditions.
  • Very easy to use and install.


  • ABS plastic housing instead of metal.

Best Runner Up

Ampper 12-24V Master battery disconnect Switch

Highlighted Features

  • 12V and 24V Batteries
  • Heavy duty
  • Wide application
  • Easy to Install
  • Aluminum housing

The Ampper Store offers a highly reliable switch. This multi-purpose 12V and 24V battery disconnect switch is second in our top picks. If you are looking for a durable and reliable battery disconnect switch, this is a great option.

Heavy-duty construction features designed to last a durable frame that won’t fail or break Made with aluminum The housing is all-aluminum resists rust. The switch will perform and withstand harsh conditions Also works.

It offers a long and long list of applications and can be used on cars, RVs, boats, SUVs, and trucks. It features two operation positions, ON and OFF, and is compatible with 12V and 24V batteries. 200 A continues at DC 12 V, and 400 A momentary at DC 12V.

It is very easy to install and requires no prior knowledge to install. The face plate mounts in a 3/4″ hole. The two copper terminal studs are 3/8 inches in size and can be used as a solo switch or combined with another switch.

It’s our second-best recommendation in this guide, but like the other items on this list, it’s also very affordable—a reliable and durable disconnect switch that most car owners can afford.


  • Heavy-duty construction aluminum housing.
  • Reasonable price.
  • Wide Application Compatible with 12V and 24V.


  • Not weatherproof

Best Battery Disconnect Switch -Buying Guide

As already mentioned this product is not that popular among car owners in fact many car owners have never even heard of battery disconnect switch. Most of the time people search for these things when they need one of them.

For some of you, there should be a purchase here so that you can better understand what a battery disconnect switch is and make it easier for you to choose the right product.

What is the purpose of a disconnect switch?

Battery disconnection is used to prevent residual power loss and battery failure while the vehicle is not in use. Some vehicle users deal with battery drain while the car is turned off. The disconnect switch disconnects the battery from the electrical components, thus eliminating the power drain.

Recreational vehicles and vehicles that are stored for long periods of time deal with residual power loss. A stored battery will eventually die if it is not used. A battery disconnect switch helps prevent this loss of power.

When should you use a battery disconnect switch?

It’s always a good idea to use a battery disconnect switch regardless of the situation, even if you’re not dealing with an up-power drain, the disconnect will help protect the battery from any damage.

Additionally, a disconnect switch helps protect against theft if someone has your car keys and won’t be able to get into the car if the battery doesn’t have power.

Let us now see what to consider while buying a battery disconnect switch.

Heavy duty construction

Adding a component such as a disconnect switch is a good and beneficial idea as long as the switch is safe to use. Stored vehicles are not always kept in the best condition. Harsh conditions can damage the disconnect switch, which can cause short-circuiting.

A housing that is capable of withstanding harsh conditions is the most basic component to look for when purchasing a disconnect switch. Although the switch is very useful if it is not durable it can do more harm to the vehicle than help.

It is also a good idea to have insulators for the terminals. Insulators help prevent any shocks and short circuits.


Another basic thing that is very important to consider is the compatibility of the battery. It depends on the vehicle you are buying the battery for. Cars have 12V batteries Trucks and vans have 24V batteries You should buy a product that is compatible with your battery type.

If you have a 24V battery but something that is compatible with 24V batteries most disconnect switches are compatible for 12V and 24V batteries so you should still ensure compatibility.

On/Off Positions

The last feature you want in a disconnect switch is a face plate with clear on and off positions. This may seem irrelevant at first, but it can be quite useful. The thing is that you want to be sure that the disconnect switch is activated.

Often times you can’t turn the switch all the way so the battery will still be connected to the power system plus some switches that aren’t spring-loaded will accidentally turn to an unwanted position.

If there is a face plate with the positions you will always find it easier to tell if the switch is on or off.

Related Questions& Other Frequently Asked Questions

Is the battery disconnection positive or negative?

It depends on the type of disconnect switch. Some battery disconnect switch products are installed on the positive terminal, some are installed on the negative terminal. Check the installation manual to determine where to install the switch.

Do battery disconnect switches work?

Yes, battery disconnect switches are very useful for preventing short circuit and residual power loss. These components also help prevent battery damage and theft.

How does the battery shut-off switch work?

A battery disconnect switch disconnects the battery from the vehicle’s electrical system. They have copper rods that enable them to cut electricity.

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