9 Best Battery Disconnect Switch in 2021 Reviews & Buying Guide


A battery is one of the most critical parts of a vehicle as it is the only part of the vehicle which stores and provides a considerable amount of electrical energy. The batteries power the essential parts of a car and make the car unusable without it. But as the battery is always connected to the card, some people observe automatic power draining. This can be avoided by simply installing a battery disconnect switch in the car. Here are some important factors of a battery disconnect switch.

  • Voltage Capacity: High voltage batteries are commonly installed in large cars like an RV or similar options. For such cars, you must choose a proper battery disconnect switch so that it can perform as required and carry the voltage to your car’s circuit properly.
  • Amperage Rating: Amperage is basically the intensity of the current flowing through a circuit. Depending on your car, the amperage output of your car battery also changes. Thus, your switch must have the necessary amperage rating to be compatible with your battery.
  • Build Material: The build material for even a simple device such as a battery disconnect switch is very important. With decent build quality, your switch will be in proper working condition for a very long time. If it’s not durable, it might even get damaged within a month or so.

Today, we are bringing you the finest battery disconnect switches present in the market right now. We have carefully sorted these picks out from hundreds of different options based on some crucial factors such as the voltage capacity, amperage rating, size, weight, etc. You can take a look at our “Buying Guide” for the best battery disconnect switch if you wish to know more about these aspects.

9 Best Battery Disconnect Switch in 2021

Best Battery Disconnect Switch in 2021: Reviews

1. Ampper Battery Disconnect Switch

Ampper Battery Disconnect Switch

Ampper is the most popular brand present on our list today with over 3000 plus satisfied customers already. Hence, it is present at the top of our picks.

The Ampper Battery Switch is our 1st pick for the best battery disconnect switches as it is one of the most sold and appreciated products on the market. It is made with heavy-duty ABS plastic housing that makes it safer from all sorts of environmental damage. It can be operated for 12 to 48 voltage batteries with 455-ampere intermittent current. You can either use this switch as a standalone device or couple it with other circuits of your system.

The Ampper Battery Switch is 2.76 x 3.74 x 2.95 inches in size and features ⅜ inches dual copper terminal studs. The existing rear cover of the switch perfectly insulates the terminals to avoid the chances of a short circuit. It can be securely installed on almost any surface with the bolt installation method including 4 sets of bolts.

Best Features:

  • Heavy duty ABS plastic housing
  • 12 to 48 volts capacity
  • 455 amps current capacity
  • ⅜ inches dual copper terminal studs

Pros:

  • It is safe to use
  • Rotational switch design for easy operation
  • Secured installation method

Cons:

  • Does not have a warranty period

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2. Nilight – 90015A Battery Disconnect Switch

Nilight - 90015A Battery Disconnect Switch

Nilight is bringing you a highly similar battery disconnect switch as compared to our previous pick. But, you will find our next pick a little bit more reliable.

For less-powered batteries, you do not require a battery disconnect switch with high current and voltage capacity. Thus, we are placing the Nilight – 90015A Battery Switch at the 2nd position on our list. This variant is perfectly suited for low-capacity batteries as it has 12 volts voltage and continuous 275 amp current capacity. Apart from that, it has a lot of similar features that will make it a perfect choice on an affordable budget.

The Nilight – 90015A Battery Switch also has a heavy-duty ABS plastic housing which makes it highly durable for most applications. Also, there is protective insulation provided to the terminals present in the rear section of the switch. The installation of this switch required 4 bolts which you will find along with the switch in the package. The installation makes the switch very rigid and secured in its place. There is a 2 year warranty period on this device.

Best Features:

  • 12 volts capacity
  • 275 amps current capacity
  • Value for the money options
  • Heavy duty ABS plastic housing
  • 2 year warranty period

Pros:

  • Very reliable in build quality and usage
  • Large switch which is easily accessible
  • There is a warranty period

Cons:

  • Difficult to remove and reinstall if needed

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3. LotFancy Battery Disconnect Switch

LotFancy Battery Disconnect Switch

Plastic rotational switches are one of the safest and easiest switches to install in your car. Hence, we are including yet another rotational switch on our list.

Our 3rd pick for today’s list is coming from a heavy-duty brand called LotFancy. The LotFancy Battery Switch allows up to 1250 amp cracking DV current at up to 48 volts that makes it ideal for high-end applications. The switch itself is 3.9 x 2.91 x 2.83 inches in size with dual ⅜ inches studs available on the back. It carries a durable plastic housing on the outside that makes it perfect for outdoor weather conditions.

There are 4 stainless steel mounting screws included in the package that allows you to install the switch in your car right away. In the switch itself, you will have dual copper studs that need to be connected with the battery. There is a removable cover present on the studs that increases the protection of the switches and avoids hazards caused by short circuits. It is compatible with a 12 to 48 volts system which is perfect for most batteries to avoid excessive power loss.

Best Features:

  • Heavy duty ABS plastic housing
  • 12 to 48 volts capacity
  • 1250 amps current capacity
  • ⅜ inches dual copper terminal studs

Pros:

  • Safe to use and install
  • Removable covering prevents short circuit
  • Large size dial which is easier to operate

Cons:

  • It does not have a warranty period

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4. GAMA Battery Disconnect Switch

GAMA Battery Disconnect Switch

If you’re looking for a cheap yet highly durable alternative for battery disconnect switches, we have a great option for you provided by GAMA electronics.

There are many types of rotational switches available for battery circuits that usually serve a simple purpose, which is to disconnect the battery from the system when not in use. The Top Post Battery Master Disconnect Switch is a similar device, but it has a very simple design as well as a very cheap price tag. This battery switch simply consists of a metal clip and rotational switch present on top of it.

The Top Post Battery Master Disconnect Switch needs to be installed directly on the battery as it would be difficult to mount this device away from the battery. Although, mounting is daily simple and can be performed by anyone. The knob present on the top can be rotated clockwise to allow the current through the switch and counter-clockwise to stop the current. It supports up to 200-ampere current capacity.

Best Features:

  • Decent option for the price
  • Simple construction and working
  • Less chance of getting damaged over time
  • Immune to external body damage
  • 1 x 3.1 x 1.2 inches in size

Pros:

  • Can be installed directly on the battery
  • Compact switch
  • Easy to install

Cons:

  • It is not a very safe option considering exposed metal part

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5. Fastronix Battery Disconnect Switch

Fastronix Battery Disconnect Switch

Fastronix also produces many heavy-duty appliances for automobiles such as various electronic switches and terminals. The following battery disconnect switch is quite a reliable option from Fastronix.

The Fastronix 2 Post High Current Master Battery Disconnect Switch is possibly the most durable and heavy-duty battery disconnect switch present on our list today thanks to its metal construction. The complete switch is made up of metal including the rotational knob present on the front. The Fastronix 2 Post High Current Master Battery Disconnect Switch is rated for up to 1000 amp intermittent current which is quite high.

You can mount the Fastronix 2 Post High Current Master Battery Disconnect Switch by making a ¾ inches hole that does not require a lot of space. It can be used as a singular switch for the entire electrical system of your car considering its high amperage rating. It features ⅜ inches brass studs fixed on an aluminum body to provide the best build quality in this class.

Best Features:

  • Heavy duty battery disconnect switch
  • Completely made out of aluminum
  • 8 inches dual brass studs
  • Up to 1000 amps intermittent current capacity
  • Can be mounted on a ¾ inches hole

Pros:

  • Very high build quality
  • The switch will not get damaged by impact
  • Metal handle has a long lifespan

Cons:

  • Comparatively unsafe to use

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6. Ampper Battery Disconnect Switch

Ampper Battery Disconnect Switch 1

Ampper is one of the most renowned brands which is known for automobile accessories. The following battery disconnect switch from Ampper is a very affordable choice.

Next up, we have the cheapest battery disconnect switch you can find on the market today. The Ampper Side Post Battery Disconnect Switch does not feature any excessive features and works simply as a switch which is a basic requirement for many users. There is a 12 volts voltage capacity on this switch and up to 125 amp current capacity. It has a simple design and can be mounted directly on the battery itself via the ⅜ inches default battery post hole.

The knob is made up of electrically insulative material and very easy to use. It is a rotational switch with simple on and off functionality. Even though the design of this switch is simplistic, it is still very safe against dust, moisture, and other environmental problems. It is great that Ampper is providing a 1 year long warranty period on this switch. But considering the application for this switch, it will last much longer.

Best Features:

  • 9 x 1.5 x 1.5 inches in size
  • Most affordable battery disconnect switch
  • Simple design and application
  • 12 volts voltage capacity
  • 125 amp current capacity
  • Can be mounted on ⅜ inches default battery post hole

Pros:

  • A very cheap option for a battery disconnect switch
  • Supports up to 12 volts and 125 amp current
  • Installation is easy

Cons:

  • Not easy to reach considering daily usage

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7. Perko 9601DP Battery Disconnect Switch

Perko 9601DP Battery Disconnect Switch

Up next, we are bringing you a battery disconnect switch from Perko. It is the most premium brand in the market right now for automobile accessories.

The Perko 9601DP Battery Disconnect Switch is the most premium battery disconnect switch you can find on the market right now and a perfect companion to secure your high-end battery and car components. It comes with a polycarbonate body that makes it ultimately secured against moisture damage and rust. Also, it makes it safer for users by avoiding direct contact with the metal parts. The same goes for the internal terminals as they are made up of brass for the least electrical resistance.

The switch is 8 x 6 x 3 inches in size which is much larger in comparison with other choices present on our list. Thus, it can be accessed easily without much effort. The studs are also 5/16 inches in size which makes them easier to install. It can be installed for 6 to 50 volt electrical systems which are not possible for most switches. As for the current, it can sustain up to 250 continuous currents. It features a 5 year long warranty period from Perko.

Best Features:

  • Heavy duty polycarbonate housing
  • 6 to 50 volts capacity
  • 250 amps current capacity
  • 5 year long warranty period

Pros:

  • The warranty period is very long
  • High voltage capacity
  • Large switch size

Cons:

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8. BEP Battery Disconnect Switch

BEP Battery Disconnect Switch

Reliability is an important factor for electrical appliances. Thus, we are bringing a reliable option from BEP next on our list.

The BEP Battery Switch offers the On-Off-On operation mode that makes it much easier to use on a daily basis. It supports up to 48 volts connection and nearly 1250 amp current cranking capacity which is not commonly available in budget switches. There are dual ⅜ inches studs present on this switch that allows proper surface mounting and stability. The BEP Battery Switch is specifically designed for panel mounting so that users can easily access this switch.

There is a standard 2 1/16 inches hole cut present on this switch which is identical to the standard gauge hole present on most of the switches. You can insert 3/16 inches nuts inside the switch that allows you to connect the cables easily without any restrictions. While the BEP switches are suitable for heavy-duty applications, it features a 2 year long warranty period.

Best Features:

  • Reliable battery disconnect switch
  • Up to 48 volts capacity
  • 1250 amps current capacity
  • ⅜ inches dual terminal studs
  • 2 Year long warranty period

Pros:

  • It features a warranty period from brand
  • Standard installation procedure
  • High capacity for voltage and current

Cons:

  • Comparatively expensive than similar options

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9. ZMYGOLON Battery Disconnect Switch

ZMYGOLON Battery Disconnect Switch

Lastly, we are featuring a battery disconnect switch from ZMYGOLON. ZMYGOLON is not specifically an automobile brand as it features a wide range of products including a battery switch.

Coming at the end of our list, we have a standard battery disconnect switch from ZMYGOLON. The ZMYGOLON Battery Disconnect Switch allows voltage between 12 to 48 volts range and up to 275 amps continuous current capacity. Thus, it is suitable for most automobile options such as cars, boats, caravans, etc. The switch allows On-Off-On functionality that properly disconnects your system from the battery to avoid power loss.

The battery disconnect switch only requires 4 mounting screws which you will receive along with the package. Considering the ABS shell on the outside, it is a much safer option with a significantly lower chance of shock and short circuit. The same goes for the built-in brass studs and removable cover on the rear section.

Best Features:

  • Standard battery disconnect switch
  • 12 to 48 volts capacity
  • 275 amps current capacity
  • On-Off-On functionality
  • Installation with 4 mounting screws

Pros:

  • Sturdy and rigid mounting
  • Safe against electrical shock
  • A removable rear cover is a safety measure

Cons:

  • Does not have a warranty period

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Buying Guide For The Battery Disconnect Switch

Battery disconnect switches are pretty common these days. A lot of users are installing battery disconnect switches in their cars as it offers a variety of disadvantages. First of all, it is a very simple and compact device. Hence, it does not cost a lot if you wish to get one yourself. A decent battery disconnect switch will avoid unnecessary battery drain in your car. Also, it is an additional security measure for your car as it cannot be stolen easily if the robber is unable to power up the car.

You can install the battery disconnect switch almost wherever you desire in the car so that it’s not noticeable but also easily reachable for you. If you are willing to buy a battery disconnect switch, you should go through our list of the best battery disconnect switches present in the market and get a decent option right now. In case you are not sure which one you want, take a look at the following properties of a battery disconnect switch which will help you decide.

Type of Switch

There are many different types of switches available for battery connection. As these switches are often installed after purchase, you will find multiple choices from various brands. While buying a battery disconnect switch, you must pay attention to the category of a switch. Your best bet is to get a rotational switch that features a knob for operation. These switches last for a very long time and also allow much safer operation. Also, make sure that there is no exposed metal part around the knob as it is generally a safety hazard.

Amperage and Voltage Rating

Electrical accessories generally offer a certain limit for electrical current and voltage. The voltage and current capacity are present in the volts and amps units respectively and must be carefully checked before buying one.

In the case of battery disconnect switches, there is a certain voltage and ampere restriction for all switches. If the input voltage or current intensity is higher than the design limit of the switch, it can damage the switch and render it useless, causing unnecessary battery drain. Also, it can be the reason behind short circuits due to damage caused to the internal parts of the switch.

Installation Procedure

As we mentioned earlier, the majority of automobile manufacturers do not install a battery disconnect switch by default. Hence, you need to purchase and install these switches by yourself to prevent excess power loss from your battery.

The installation for different types of switches is different as there is variation in the design as well as mounting methods. A switch with a higher number of screws is generally much sturdier and does not come off easily. There are a few options that can be mounted on the battery directly which is also a considerable choice.

Safety

Safety is a critical factor while operating with electronic devices as there is always the risk of getting an electrical shock which can cause permanent damage. In almost every automobile, there is a high-capacity battery that can cause a severe electrical shock which must be avoided.

Hence, you need to make sure that the battery disconnect switch that you are buying follows the safety protocols properly. One of the important safety precautions is to not touch any metal part of the switch while accessing it as it always has a live connection attached to it. Also, it should be safe from environmental damage to avoid future safety issues.

Conclusion

Today, we brought the best battery disconnect switches right at your fingertips. Here, you are able to get all of the important specifications of the best battery disconnect switches and also a brief review where we have tried to explain the product in a simple manner.

If you are not satisfied with the information, you can also refer to our buying guide to get some additional information about battery disconnect switches in general. Here are our top recommendations from today’s list that might be the right choice for you.

  • If you are looking for a direct battery disconnect switch that can only be accessed by opening the vehicle, we have got just the perfect device for you. The Ampper Side Post Battery Disconnect Switch is a very simple and cheap solution for a battery switch that only includes a metal strip with the switch and two bolts. It is installed directly on the battery which is not accessible for anyone except the owner of the car.
  • Looking at our most premium choice for the best battery disconnect switch, we have the Perko 9601DP Battery Disconnect Switch. It has the most durable build quality as its outer body is made up of polycarbonate with brass terminals inside. It supports 6 to 50 volts and continuous 250 amps capacity which is great.
  • Reliability matters even for simple devices like a battery disconnect switch. Hence, we are recommending the BEP Battery Switches which is one of the most reliable options on our list today. It is a 48 volts switch with support for over 1250 ampere cranking current. Along with such heavy-duty specifications, it features a 2 year long warranty period.



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