10 Best Battery Disconnect Switch of 2022 – Review and Buying Guide

The most common issue we see in recreational vehicles that are only occasionally used is a dead battery after storage, which is largely due to power loss that occurs during storage. Preventing this is a simple matter of placing a battery compartment apart from the rest of the device.

Every time we park, we unplug the negative port on our car to accomplish this. This is a time-consuming process, but imagine if you had to open the hood and remove the engine every time. It’s a good idea to get the greatest battery disconnect switch for your car to avoid this problem.

Top 10 Battery Disconnect Switch: Editor Recommended

In the following paragraphs, I’ll describe how I’ve used 12 disconnect switches, and what I think of them. Here are some answers to your most frequently asked questions, along with a short buyer’s guide. The time has come!

The 10 Best Battery Disconnect Switch

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

1. Ampper Battery Switch, 12-48 V Battery Power Cut Master Switch Disconnect Isolator

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.
  • 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 – 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.

Additional Info :

Color Battery Switch
Item Dimensions
Height 2.95 Inches
Width 3.74 Inches
Length 2.76 Inches
Weight 0.58375 Pounds
AWBLIN Battery Disconnect Switch 12V 24V 48V Master Isolator Cut Off Switch for Marine Boat Car Truck Camper RV Trailer Vehicles Engine Application (On/Off)

2. AWBLIN Battery Disconnect Switch 12V 24V 48V

Features :

  • STURDY & FULLY ENCLOSED SHUT OFF SWITCH: The Heavy Duty Cut Off Switch is made of ABS plastic housing and copper tin plating inner stud. Fully enclosed design to protect wiring from dirt, corrosion, and rain. This is the best choice in harsh ocean conditions.
  • COMPATIBILITY & SAFETY: This Battery Kill Switch Used for DC 12 – 48V systems to isolate and secure the electrical system; eliminate any power draw from the battery when vehicle is not in use, disconnects the battery safely; provide a reliable way to shutdown electrical power during maintenance and protect batteries from excessive drain.
  • EASY TO OPERATE: On/Off 2 position, Suitable for various 12 V/24 V/48 V systems. Current voltage: rating at 300 A continuous (1 hour) at 48 V DC and 1000 A for 5 seconds. Clockwise to turn on , counter clockwise to turn off.
  • WIDELY APPLICATION: Battery isolator switch is universal used for RV, Marine, Car, Boat, Camper, Travel Trailer, Truck, ATV, UTV battery and other engine application, makes it an effortless job of turning the battery on and off.
  • PACKAGE INCLUDE: Equiped with 1* Battery Switch, 4 Pcs Mounting Bolts, 4 Pcs 2*3/8 Copper Ring Terminals, 4 Pcs Heat Shrink Tubings and a hex wrench, which can provide great convenience for your installation. If you have any questions,please contact us via email. We are always here to support you.

Additional Info :

Item Dimensions
Height 2.9 Inches
Width 2.6 Inches
Length 2.6 Inches
High Current Battery Disconnect Switch, Briidea 200A Duty Master Battery Power Cut Isolator Kill Switch with Face Plate for Car, Vehicle, RV and Marine, 12-48V

3. High Current Battery Disconnect Switch

Features :

  • SAFETY PROTECTION: Our battery disconnect switch provides power cut off to electrical system, to help prevent battery drain,safety and efficient. When car or boat or RV is not in use, disconnects the battery safely
  • HIGH CURRENT BATTERY SWITCH: Rated to 200 Amps continuous duty, 1000 Amps intermittent duty, used for 12-48 VDC systems to isolate and secure the electrical system
  • DURABLE METAL BODY: Heavy duty metal case has strong weather resistance, protects internal components of the switch for use in the harshest conditions
  • EASY OPERATION: This battery isolator switch with face plate is easy to install, has on/off indicator, it has a definitive click when turning on and off
  • WIDE APPLICATION: The briidea master battery disconnect switch is widely used for ATV, Trailers, Off-road, RVs, Trucks, Heavy Vehicles, and electrical equipment’s switch

Additional Info :

Top Post Knife Blade Master Switch, 12V 24V Battery Disconnect Switch for Auto Car RV-Marine Boat Truck Vehicle, Battery Cut Off Shut Off Switch (Negative,Vertical)

4. Top Post Knife Blade Master Switch

Features :

  • 【COMPATIABLE】This knife-blade battery disconnect switch is suitable for TOP POST TERMINAL, battery POSITIVE post only. Maximum Current: 750A, Rated Current: 250A. 6v 12v 24v car truck, bus, RV, Boat, trailer battery
  • 【HIGH QUALITY & HEAVY DUTY 】This top post battery disconnect switch is made of brass material, corrosion resistance, conductive performance is good, durably made for safety use
  • 【EASY TO INSTALL】This battery doctor knife switch for top post batteries can be adjusted into a vertical knife switch through the bottom of the screw, easy to install & simple to use. Switch the knife, then power will cut
  • 【SAVE ELECTRYCITY】This knife blade master switch is used for the battery to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, stop unwanted battery drain and prevent theft or unauthorized use. Widely used for car, truck, boat or RV battery, also other electrical equipment’s battery
  • 100% Customer satisfaction is our constant pursuit, we only provide good quality products for every buyer friend.If you have any problem during the use, we will try our best to offer you with satisfactory and friendly service.

Additional Info :

Battery Cut Off Switch,12V 24V 48V Battery Disconnect Switch for Marine Boat RV ATV UTV Vehicles, Waterproof Automotive Replacement Battery Shut Off Switch (on-Off)

5. Battery Cut Off Switch,12V 24V 48V Battery Disconnect Switch

Features :

  • Simple Operation:Switch on = Power; Switch off = No power.Rating: 275A DC Continuous (1hr), 455A DC Intermittent (5 min), 1250A DC Cranking (10 sec); Stud Size: 2×3/8″ (10mm)
  • Durable Material: This battery disconnect switch is made of ABS plastic housing, tinned copper studs and nuts.Come with 4 stainless steel mounting screws and caps to help fix the switch tightly. 4 Removable side plates provided access for battery cables
  • Safety Protection:battery shut off switch can disconnects the battery safely, protect batteries from excessive drain when vehicle or boat is not in use
  • Great Compatibility:This battery quick disconnect is used for DC 12 – 48V systems to isolate and secure the electrical system, can stand alone or be locked together with other switch, simple and economical way to separate batteries.
  • Wide Application:universal used not only for Car, Van, Caravan, RV, Truck, Marine Boat, but also electrical equipment’s switch, such as flashing light, chassis light, fog light, dome light.

Additional Info :

Top Post Battery Master Disconnect Switch

6. Top Post Battery Master Disconnect Switch

Features :

  • Ideal for car, truck, boat or RV battery
  • Twist of knob disconnects power
  • Easy Installation

Additional Info :

Top Post Battery Disconnect Switch, Ampper Battery Master Switch Isolator for Power Disconnect Cut Off

7. Top Post Battery Disconnect Switch

Features :

  • Compatible: used for top post terminal, 15-17 mm cone battery negative post only, DC 12 V system, rated current: 125 A, On/Off 2 position.
  • Convenience: knob type, easy to install & simple to use. Loose / twist of the knob, then power will cut.
  • Heavy Duty: solid made, rust and corrosion resistant, durable made for safety use.
  • Purpose: used for battery to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely.
  • Used for Car, Vehicle, RV and Boat batteries which have a standard 15-17 mm cone top post terminal, also used for electrical equipment.

Additional Info :

Color Top Post
Item Dimensions
Height 1.5 Inches
Width 1.5 Inches
Length 3.3 Inches
Weight 0.275 Pounds
Kohree Battery Disconnect Switch, 12V-48V Battery Isolator Power Cut Off Master Switch Waterproof for RV, ATV, Car, Marine, Boat, AUTO, with 4 Mounting Bolts, 275 Amps, (On/Off)

8. Kohree Battery Disconnect Switch

Features :

  • 🔋【Material】: Heavy duty battery shut off switch made of ABS plastic housing, and the 4 sets of bolts is tinned copper studs(2 x 3/8″ (10mm) & nuts for ignition protected to distinguish the different gears easily which you switch to even at night.
  • 🔋【Easy Operation】: RV Battery switch with On/Off position in clear color labels. Switch ON=Power (green) to closed circuit, Switch OFF = No power (red) to the cut-off circuit.
  • 🔋【Compatible 】: Used for 12-48V, 275 A continuous at DC 12V, 455 A intermittent at DC 12V, 1250 A momentary at DC 12V, battery selector switch can stand alone or be locked together with other switch for minimizing battery loss and preventing electric leakage effectively.
  • 🔋【Safe & Protective】: Battery isolator switch comes with CE Certification, and 4 removable side plates, the rear cover insulates terminals against any short of circuit.
  • 🔋【Wide Application】: Kohree battery switch serves as a power cut off when vehicle or boat is not in use on RV, ATV, car, marine boat, camper, camper, travel trailer, truck, UTV, etc. Also a perfect choice for father’s day gift.

Additional Info :

Color on/off
Item Dimensions
Height 3.94 Inches
Width 2.83 Inches
Length 2.83 Inches
TKDMR 2Pack Top Post Battery Disconnect Switch - Battery Master Switch Isolator for Power Disconnect Cut Off with 2pcs Battery Corrosion Prevention Shim

9. TKDMR 2Pack Top Post Battery Disconnect Switch

Features :

  • Package Include: 2pcs x Top Post Battery Disconnect Switch, 2pcs x Battery Terminal Anti Corrosion Washers Fiber.
  • Material: Brass Battery Switch Made of Heavy Duty Brass Alloy,Durable Zinc Alloy Terminal.Heavy Duty,Suitable for Most Batteries.
  • Wide Application: Used for Car, Vehicle, RV and Boat Batteries Which have a Standard 15-17 mm Cone top post terminal, also used for electrical equipment.Eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely.
  • Used for top post terminal, 15-17 mm cone battery negative post only, DC 12 V system, rated current: 125 A, On/Off 2 position.under the condition of 12V voltage, continuous current 125A, instantaneous current 500A,Designed for high-current applications.
  • Always remember to turn off your vehicle before disconnecting the battery. This will prolong the lifespan of the battery, the electrical components, and the disconnect switch.Avoid random power cuts or you risk damaging the locking navigation system and other anti-theft features.

Additional Info :

Item Dimensions
Height 0.787401574 Inches
Width 1.968503935 Inches
Length 3.93700787 Inches
Weight 0.440924524 Pounds
Ampper 12-24 V Master Battery Disconnect Switch, Battery Power Cut Isolator Killer for Car, Vehicle, RV and Boat (Aluminium Housing, On/Off)

10. Ampper 12-24 V Master Battery Disconnect Switch

Features :

  • Heavy Duty: all aluminium housing, durable made for safety use. Mounts in 3/4″ hole, equiped with a face plate.
  • Operation: On/Off 2 positions, 200 A continuous at DC 12V, 400 A momentary at DC 12V.
  • Compatible: used for DC 12 – 24 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.

Additional Info :

Color Battery Switch
Item Dimensions
Height 2.95 Inches
Width 2.95 Inches
Length 4.4 Inches
Weight 0.9375 Pounds

Buying Guide: What To Consider When Select Best Battery Disconnect Switch

A wide variety of disconnect switches are available for purchase. As a guide, we’ll divide it down into three categories: purpose, type, and application. Consider these factors before making a decision that is best suited for your car and lifestyle.

Battery Disconnect Switch

 

a) Purpose

The first objective of these switches is to conserve battery life. Despite being shut off, most modern automobiles still consume a small amount of energy. This isn’t a problem for most frequently driven vehicles, as the battery is fully charged every time it is turned on.

For extended periods of time, such as three weeks or more, this minute consumption might really drain the battery of your vehicle. Battery disconnect switches are a better option than wrenching your way under your car’s hood to physically disconnect the battery from the system, but they’re still not ideal.

The finest battery disconnect switch can also be used to keep your vehicle safe from theft. In order for the engine to start, the motor needs to be powered up. Even if kidnappers are aware of this technology, their chances of success drop significantly if the car they’re trying to steal won’t start on their own.

c) Type

You can pick from a variety of different switch kinds. With only two copper posts and one brass lever linking them together we have the knife blade switch. The circuit can be closed or opened by simply lifting or lowering this lever. Compared to other types, this one is the most straightforward to install. Aside from being placed directly on the battery.

Rotating switches are the most prevalent, and can be found either on the control panel or directly attached to the battery. The lever switch is a version of this, in which a lever is used instead of a knob to control the device. Although this switch is essentially the same, it is considerably more convenient to use because it provides a stronger grip and leverage. Most racers favor this switch.

Advances in switch mechanisms were made possible by the development of lever switches. It’s a lot like your car’s ignition; you need a unique key to flick the switch. Without it, you won’t be able to get any electricity. For anti-theft purposes, this sort of disconnector is most commonly utilized.

The remote switch is a more advanced method of discharging your battery. A radio-controlled electromagnetic trigger is utilized instead of a physical button or lever to perform the same function as the other switches I’ve previously explained. This is a secondary disarming system for your vehicle, and it is also commonly utilized as a form of anti-theft technology.

Finally, there is a relay isolator to complete the circuit. RVs and other vehicles with numerous battery systems are the target market for this product. When the ignition is turned off, the secondary battery is physically disconnected from the system, but it is immediately reconnected when the power is restored. In other words, it charges when the engine is running, but it doesn’t do anything when the car is idle.

c) Application

Both the battery post and the dashboard or instrument panel are traditional places to mount a battery disconnect switch.

It’s a good idea to get the one attached to the battery post if you don’t plan on using or storing your vehicle too often. Simply put, it’s easy to set up, simple to operate, and requires little to no upkeep. Its sole drawback is that it can be difficult to get to.

As far as I’m concerned, you should go with an instrument panel-mounted battery disconnect switch. To make your automobile a little more secure, you can place it in an unobtrusive location.

It’s possible to protect yourself from thievery by purchasing the remote disconnector or key and switch mechanism. If you go with the latter, you don’t have to get out of the car to turn it on or off; instead, it can be hidden in the vehicle. Since it requires its own key to operate, you can place it in a more prominent location.

How Does It Work?

Physically cutting the battery’s connection to the rest of the electrical system is how battery disconnect switches work. There are a variety of techniques to accomplish this goal, the simplest of which is to use a manual lever. It is possible to open a circuit with a screw-type knob, while others employ an internal mechanism.

Remotely controlled electromagnets or even automatic relays are the most advanced possibilities. Regardless of all the options and advancements, the essential premise remains the same: open the circuit to disconnect the electricity.

Conclusion

Your battery disconnect switch can now be purchased after reading this tutorial and considering all of the options I have provided. As far as I can tell, the products listed above are the greatest ones I’ve come across thus far. Do tell me if you come across something better!

Keep in mind that you should only purchase what you need. Don’t be swayed by sales patter when canvassing. When in doubt, consult your owner’s manual or a skilled automotive electrician if you have any questions.

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