Camping in the woods or parking your RV off-grid for a while can be dangerous if you don't have a battery disconnect switch.
You might not think about it, but running an engine will drain your batteries even if you're parked. This is because of how much power it takes to start-up and run the engine.
That's why the RV battery disconnect switch is what you need to prevent this from happening. It's easy to install and will keep your batteries safe even when they're disconnected from the vehicle itself.
In order to make RV owners' lives easier, we provide the 10 best RV battery disconnect switches, how to choose the right one, and some pro tips.
Ampper Am-CBS01 Master Battery Switch
5 out of 5
Nilight (90015A) Waterproof Battery Disconnect Switch
5 out of 5
Blue Sea Systems M Series On Off Battery Switch
4.5 out of 5
GAMA Electronics BS200 RV Battery Disconnect Switch
4.5 out of 5
Fastronix Solutions (303-001) 2 Pole Battery Disconnect Switch
4 out of 5
Here are the 10 Best RV Battery Disconnect Switch
It can be difficult to know which one is the best according to your needs. We have reviewed ten different models so make sure to read our reviews before making a purchase:
1. Ampper Am-CBS01 Master Battery Switch
The Ampper Am-CBS01 Master Battery Switch can ensure draining the relocation vehicle battery won't happen. This RV battery disconnect switch has both a rotary head design and an indicator light so it's easy to use.
The durable ABS plastic housing is durable and provides protection from short circuits, while the terminal covers at the back of the housing provide insulation from unwanted electrical connections.
This switch can be used for the purpose of isolating and protecting the electrical system in your RV, meaning you could add other switches in order to create a circuit breaker for your RV.
The Ampper disconnect switch is designed for 12-48 V systems and is lockable with any other switch. The switch has a mounting bracket with four sets of bolts, which makes it easy to install.
The Ampper battery disconnect switch is about 2.76 inches tall, 3.74 inches wide, and 2.95 inches deep. It comes with copper terminal studs so it's easy to install and it's compatible with almost all electrical systems in cars, RVs, and boats.
- Heavy-duty ABS plastic housing
- Lockable with other switches
- 4 sets of bolts for easy installation
- Insulate electrical connections at terminals
- Rotary up and down indicator design for easy use
2. Nilight (90015A) Waterproof Battery Disconnect Switch
The Nilight (90015A) Waterproof Battery Disconnect Switch is a high-quality disconnect switch for your RV. This model is specifically made to handle 12-48 Volts of battery power and can be mounted on the back or side of your vehicle using 4 bolts.
The insulating part on the back helps prevent short circuits from occurring under any circumstances which is perfect for those who work with large amounts of electronics or sensitive instruments.
This RV battery disconnect switch will make it easy to isolate and secure your electrical system when they aren't in use as it grants you two positions off/on.
Meaning that if something malfunctions while you're traveling, all you have to do is press one button, turn off the battery power system entirely, then go find the source of the problem.
The best battery disconnect switches are for those who want to protect their entire system and easily isolate it by pressing a button. Widely used for Ford cars, marine boats, RVs, and other electrical equipment.
- 2 positions on/off
- Insulating part to prevent short circuits
- Can be mounted on the back or side
- 4 bolts for easy installation
- 12-48 Volts compatible
3. Blue Sea Systems M Series on Off Battery Switch
The Blue Sea Systems M Series On Off Battery Switch instantly disconnects the battery from a mobile home or recreational vehicle that uses up to 300 amps, depending on which switch you buy.
The maximum voltage is 48 volts and the rotary battery disconnect switches automatically sense that voltage. This lets you connect the rear cable by simply pressing it into place on top of a stud with an M10 hex nut.
It requires only one 6007 bracket to mount under your RV or home and is designed so that any part can be easily replaced in the future.
Waterproof rating of IP66 means the switch can be used either outside or inside your RV. The power stud also keeps moisture out so you never have to worry about being stranded on a rainy day.
This RV battery disconnect switch comes in 48 volts and a variety of styles and sizes to suit various types of vehicles, so it's best to find one that will work with yours before purchasing.
This ensures protection against overvolting and accidental discharge but still provides power for engine start situations like using generators.
- Disconnection of load instantly
- Automatic voltage sensing for 48V applications
- Power stud keeps moisture out
- It has an IP66 waterproof rating
- Easily replaceable part in case it's damaged
- Available in 48 volts and various
4. GAMA Electronics BS200 RV Battery Disconnect Switch
The GAMA Electronics BS200 RV Battery Disconnect Switch is a great switch to help protect against accidentally draining your batteries.
The switch comes installed for easy installation so you can keep your generators running longer after dark or any time that they are needed.
The switch can be set to either On or Off, just by twisting the knob. It is recommended that you have a battery plate kit installed with this disconnect switch in order to seal your batteries against corrosion.
You won't have to worry about them being drained by the lights, refrigerator, or nove heating system. It is also designed with quick-connect terminals just in case you need to remove it without making too many modifications.
This model is rated at 200 amps and will work on cars, trucks, boats, or RVs since the clamp size doesn't matter as long as it fits around your cables coming from your battery terminal clamps.
- Simply turn the knob to turn it on or off
- Comes installed for easy installation
- High amp rating for RVs, cars, trucks, or boats
- Comes with quick-connect terminals
- Rated at 200 amps
5. Fastronix Solutions (303-001) 2 Pole Battery Disconnect Switch
Fastronix Solutions (303-001) 2 Pole battery disconnect switch is the best choice to power your RV when you are not using it or while traveling. The switch can be mounted in a 3/4" hole and has a 180 Amp continuous rating.
Rotary switch type and aluminum construction make it the best quality disconnect switch for your vehicle and have a push-button. The switch easily disconnects any power source that is connected to it but will not interrupt the main RV battery.
This RV battery cut-off switch provides a single power cut-off for the entire electrical system required by NHRA competition rules when the battery is relocated.
One of the great benefits of this switch is that it can be used as a power disconnect for your RV when not in use. This keeps you from draining your battery by accidentally leaving lights or other electronics on.
You can still run the refrigerator and other electrical appliances because they are plugged into separate outlets which are fed directly from the main battery. This means you won't have to start your generator in the middle of the night or get up at sunrise to avoid draining your RV battery.
- 180 Amp continuous rating
- Push-button disconnection of any power source
- Single pole switch with 3/4" hole cut-out
- One power cut-off for the entire electrical system
6. Ampper Am-CBS31 RV Side Post Battery Disconnect Switch
Ampper Am-CBS31 RV Side Post Battery Disconnect Switch is designed for connecting GM side post batteries or any other battery with the 3/8" terminal
The disconnect switch has a battery voltage ranging 12v DC and 125 amp rating where a metal exterior with a rubber seal makes this disconnect switch rust and corrosion-resistant. ON-OFF-ON lift type switch with a solid made for safety use.
Loose/twist the knob and you will find that the power will be cut off to protect your electrical system on a boat and vehicle when not in use such as protecting against the accidental drain of an RV battery caused by accessories attached poorly.
Heavy-duty construction, convenience knob type easy installation, and simple operation make it perfect for emergency shutdown or keyless ignition circuit protection circuits among other occasions.
Install the battery disconnect switch to make sure that no power is being drawn from the car when not in use and ensure that it is not accidentally turned on to prevent draining the battery.
- 12v DC and 125 amp rating
- Solid made metal exterior
- Safety ON-OFF-ON lift type switch
- Loose/twist the knob and power will shut off
- Heavy-duty construction
- Perfect emergency shutdown circuit protection
7. LotFancy Waterproof Battery Disconnect Switch for RV
It's important to have the power shut off on your RV when it's not in use, but you can't do that if the battery is draining. Simple ON-OFF lift type switch that allows disconnecting the battery safely.
Thankfully, LotFancy Waterproof Battery Disconnect Switch for RV has an easy solution with their waterproof heavy-duty battery switch for 12V-48V small to long-range maximum vehicles.
This RV battery disconnect switch can be used for cars, marine, boats, RV, camper, travel trailers, trucks, ATVs, UTVs, and battery banks.
Rotary switches on position will activate power while off will cut all power to your system. In addition, it has a stud size of 2x3/8" and a rating of 1250 amps continuous duty, 275A DC intermittent duty, and 455A DC for five minutes.
Additionally, this package includes four stainless steel mounting screws, which help keep the switch securely in place during installation. All of these parts are cast from acrylonitrile butadiene styrene which ensures they won't break like plastic would.
- Heavy-duty construction battery switch
- Waterproof System
- Fits 2x3/8" stud size
- Vehicles with 12V-48V can use it
- The rotary switch will activate the power
8. Ampper Am-CBS41 Automatic Power Cut Off Switch for RV
The Ampper Am-CBS41 Automatic Power Cut Off Switch for RV is an ultra-safe and effective way to make sure your battery is safe when you are camping or running errands.
As the RV battery-shutdown switch prevents any power from coming into the vehicle, it means that it will remain safe inside of an enclosed space with 12-24 Volts DC present and will provide you with 100% satisfaction.
Isolate and protect the electrical system. Can be used alone or in conjunction with another switch. 3/8" (10 mm) x 2 and very easy to install which mounts in a 3/4" hole equipped with a faceplate. Used in cars, vehicles, RVs, and boats for electrical equipment.
It features copper terminals with nuts and washers that help give a good contact setup. Also equipped with an aluminum actuator to prevent any rusting or corrosion.
With one press on either side of this switch, you can cut off the power that would come into the vehicle or boat indiscriminately, protecting both batteries at all times.
- Prevents accidental discharge of batteries
- Mounts in a 3/4" hole equipped with a faceplate
- Copper terminals with nuts and washers
- Aluminum actuator to prevent rusting or corrosion
- Easy installation with 100% satisfaction
9. A ABIGAIL A5207C RV Battery Disconnect Switch Inside Car
A ABIGAIL A5207C RV Battery Disconnect Switch Inside Car keeps your RV battery safe in case it needs to be drained for a long period of time or if its accidental discharge will cause you inconvenience while away.
It comes in different models which work with 12V and 24V DC systems with 250-750 amps continuous for momentary use at 12 volts. It has an On/Off 2 position, a long bolt used for the battery side post, and a 3/8" hole only.
The blade-style design lets one installation be all necessary, instead of having to hardwire wires throughout your vehicle which is unsafe and causes increased wear on the system due to the wire being constantly broken.
It can be mounted on the negative battery post. It is used for batteries in order to isolate electrical systems, reduce power consumption from your battery when you are not using it, and disconnect safely.
This heavy-duty solid brass is rust and corrosion-resistant, making it durable for use in a safety application.
- Has a blade-style design
- Rust and corrosion-resistant solid brass
- 12V and 24V DC systems 250-750 amps continuous
- On/Off 2 position, 3/8" hole only
10. Zoostliss RV 12v Battery Isolator Switch
Zoostliss RV 12v Battery Isolator Switch is a perfect way to protect your vehicle from thieves. The instant you lock the key, power from the battery will be cut off and no one can start it without this special unlock key.
It is easy to install on an RV or any other type of car with just about an hour of time invested in parts and five different bolts which most people already have at home.
With this RV battery disconnect switch, you can shut off any type of car with 12 Volts and 500 Amps. The rotary switch is easy to use and allows you to stop the car's engine with just one click of a button.
This switch has a stylish brass material finish which goes great in any kind of vehicle and the full kit comes with installation manuals for anybody who wants to make an easy job out of it.
You also receive two keys for your purchase so that there's always a backup when one inevitably gets lost. This switch has a weatherproof cover for added protection.
- Easily installed
- 500 Amps with 12 Volts
- Brass material finish
- Two keys for backup
- Weatherproof cover included
If you need to install an RV battery disconnect switch on your RV, the above 10 battery disconnect switch for RV can be helpful to avoid having a frustrating experience with your RV battery. The question is, how do you pick the best RV disconnect switch?
How to Choose the Best RV Battery Disconnect Switch?
You want to be able to choose the best RV battery disconnect switch. This is not a decision that should be taken lightly, as it will affect how you use your vehicle and just about everything else in life.
Here are some things you need to know before making this purchase:
Purpose of the Switch
You will need to know what kind of switch you are looking for, like whether it is for an RV or any other type of car.
It can be a negative switch that gets attached to your battery and a positive that will let you start the engine safely.
You must know what size switch you need. You can find this information under the specifications for each particular model.
This measurement will indicate how much power it can handle at once, which is important if you are looking to turn off your car's engine with one press of a button.
If you're looking for a metal switch, it's important to consider how much weight you need. Some models for the heavy-duty switch and others don't come with the same type of durability or safety standard.
It is easy to find out this information because each company states the exact weight in their product description.
You'll also need to know what the reliable disconnect switch is made out of. It will either be metal or plastic, but some are designed with both in mind.
The best battery switches are made from materials that can stand up to all manner of weather and temperature changes. Look for stainless steel or brass whenever possible.
The amp load is the measurement of how much electricity a switch can handle at once without overheating or sparking.
This number will be on the box and in the product description. It will also indicate how much power your car needs to turn off safely.
You need to know if the switch is universal or made for a specific type of car. Some switches can function with any vehicle and others will only work with select makes and models.
If you don't like the idea of having to install custom switches purposely for one make and model, look for a universal switch instead.
You don't want to spend all day installing your switch. Some models require extensive installation and wiring while others can be done in minutes.
It's smart to look into this information before buying, as some switches must be wired into the fuse box or directly attached to your battery.
Safety Shut Off
The best battery disconnect switch should have a safety shut-off feature. This is important for cases when the wires are accidentally crossed or an object falls on the switch.
For example, if your battery goes below 12 volts, the switch will automatically turn off to prevent sparks and other unsafe circumstances.
Ingress Protection Rating
You should also consider how well the switch is protected against water and dust. The rating for this will be in IP, which stands for ingress protection rating.
Anything above 50 means it can handle harsh conditions without rusting or breaking down.
Finally, you should take the price into consideration when making this purchase. If something sounds too good to be true, it probably is and you're going to have a bad time.
It's smart to just stick with the more reputable manufacturers that have been around for decades or even centuries.
These are just some of the things you need to think about before buying an RV battery disconnect switch on or off. This is one product that should never be purchased on a whim or without first learning all there is to know.
Types of RV Battery Box Disconnect Switch?
A battery disconnect switch for RVs consists of three primary types of switches that have different functions.
A rotary switch is used for basic on/off applications. This type of switch gets connected to the battery cables that are grounded to the chassis of the vehicle.
One cable goes to one terminal and another cable attaches to another. When you turn off your car, the battery gets cut off from the rest of the system by rotating this type of switch.
Lever and Knife Switch
A lever and knife switch is similar to the Rotary Switch in the way that it gets attached to one cable with another cable.
But instead of using a rotary mechanism, this type of switch uses a lever or blade set up which interrupts electrical flow upon being moved into position.
A remote switch is used for applications that require the control of the switch to be remote. This type of switch gets attached to both cables but doesn't interrupt power flow when it's in position.
You either use an on/off switch or a key start mechanism with this type of battery short circuits switch.
How to Install a Battery Disconnect Switch in an RV?
A battery disconnect switch is designed to be installed in vehicles that are meant to be towed. Simply follow these simple steps:
Step 1: Finding the Right Fuse Box
You need to find a fuse box that is grounded and compatible with your battery disconnect switch. If you choose the right fuse box, it'll be so much easier to install your battery short circuits switch.
Step 2: Turn Off Power and Ground to the Fuse Box
You need to disconnect both power and ground wires from your fuse box. This will only work if you're using a switch that is grounded.
Step 3: Attach Battery Disconnect Switch Brackets
Some brackets may be included with your battery disconnect switch kit, while others could require the purchase of additional brackets.
Step 4: Attach the Switch to Your Fuse Box Plate
Simply place your switch on top of the bracket and tighten all screws until a snug fit is achieved.
Step 5: Attach the Fuse Box Plate to Your Vehicle
You need to attach your fuse box plate to a bracket which will then get attached to the vehicle. All that's left is wiring! (If you purchased a remote switch).
Step 6: Test Your Connection and Enjoy
You can now test out your battery kill switch. Make sure it works by turning on your ignition and checking if the switch is working properly.
If you follow these steps, you won't have any problems installing your RV battery disconnect switches. It's safe to say that this is the easiest part of the process.
How does Battery Disconnect Switch Work on RV?
Battery short circuits switch for an RV works by interrupting the flow of electricity to your vehicle's battery, which turns off all power.
Flipping the switch up will make all power to your RV stop while flipping it down will resume electricity flow.
If you keep your battery disconnected, the only way to get power back is by reconnecting the switch or by using a remote switch if you have one installed.
This is the only way to effectively ensure that you won't accidentally drain your RV battery without having access to a generator or shore power.
When do You use an RV Battery Disconnect Switch?
You should use an RV battery disconnect switch whenever your vehicle will be stored for a long time or when you have no access to a generator. Keep it in the "on" position so that everything will stay charged up and ready to go when you need a boost of power.
If you don't flip it back up, then all power from your battery will be cut off which is why you need a remote switch if it's going to be a long time before the RV battery disconnect switch gets flipped back up.
You can flip this switch down whenever necessary, but make sure to keep it in the "on" position when your vehicle isn't being used so that any stored power from your battery remains.
What are the Benefits of Having a Battery Disconnect Switch?
RV battery disconnect switches come in handy for many reasons. Here are just some of the benefits it provides:
Prevents Draining Batteries
Most RVs have systems that use electricity even when the vehicle is turned off. This means that if you accidentally leave something on, you could drain your battery and be left stranded.
Protects Systems from Overloading
If you have electronics that aren't meant to run at the same time, RV battery disconnect switches will ensure that doesn't happen. Let's say for example you're using an air conditioner, microwave oven, and a space heater all at once.
All of the other battery disconnect switches combined would overload your electrical system and might cause a fire.
Allows You to Park Off-Grid
If you want to go camping in the woods, disconnecting your RV battery will ensure that all power gets cut off so you can be truly off-grid.
Great for Winter Storage
This one works especially if you're storing your RV in the garage over winter. If you have a battery kill switch installed in your RV, it'll be easier to store your vehicle in the garage without worrying about draining the battery.
There are more benefits to having battery short circuit switches installed in your vehicle. It all depends on your lifestyle, but this switch is definitely a necessity for any RVs.
Kohree Vs Zmygolon Disconnect switch
Kohree and Zmygolon battery disconnects are two of the most commonly used brands. Here's how they differ:
Kohree Battery Disconnect Switch
Kohree battery disconnect switch is made from durable Acrylonitrile Butadiene Styrene that can handle high temperatures and has a working voltage rating of up to 12-48V DC, which works with most RVs. It's also water-resistant and has a small design, so it won't take up too much space.
With the 1-2-Both-Off Battery selector switch, you can control either battery separately or multiple battery systems at the same time.
Zmygolon Battery Disconnect Switch
This switch is made from Acrylonitrile Butadiene Styrene materials and comes with brackets and hardware needed for mounting into the vehicle.
It's also washer resistant and weatherproof with a 275 Amps continuous current rating of 12V DC. A removable rear cover protects the rear terminals from short circuits
The Best RV Battery Disconnect Switch FAQs
You might have a few questions about the battery continuous power switch for RV or RV battery kill switch. We have answered a few of these questions to help you better understand why it's important to have one installed in your vehicle:
1. Exactly What Is an RV Battery Cutoff Switch?
Basically, a battery cutoff switch is a device that is installed in your vehicle to cut power from the main electrical source. It can either be manually or automatically controlled and it prevents the batteries from being drained even if something goes on electrical fires.
In fact, most RVs have one of these switches now because of how efficient they are at preventing unnecessary battery drain.
2. Is It Possible for Battery Disconnecting Switches To Fail?
It's extremely rare to have battery disconnect switches fail, but it can happen.
If you end up having problems with yours or you're looking for peace of mind, get an automatic backup system. It won't let your battery get drained even if something happens to the RV battery disconnect switch.
3. Why are RV Battery Disconnect Switches Not Working?
If your battery disconnect switches aren’t working, most disconnect switches are likely because the fuse is blown. It's best to check that out first since it can be easily fixed by changing out the fuse.
If that doesn't work, then it could be because there's a short in your circuitry somewhere. You can check for shorts by taking off fuses one at a time to see which device isn't turning on when you flip the switch down.
4. How Do You Know When Your RV Batteries are Fully Charged?
There are special voltage meters that you can attach to your batteries to determine when they're fully charged.
Otherwise, if you don't have a battery dashboard or instrument panel, then you'll just have to go by the time it takes for them to charge up. It usually takes about 8 hours if they're completely drained from running the engine or overnight if it's been plugged into a power source.
5. Is Battery Disconnect on Positive or Negative?
You'll want to have the battery disconnect switch for RV set up so that it cuts off electrical power from the negative battery cable then the positive terminal.
This is considered standard practice and will keep draining your batteries if not done this way, even if you're using a remote control unit.
6. Is It Necessary to Disconnect the Camper Battery?
It's important to have the best battery disconnect switch installed if you want to go camping in the woods or park your vehicle off-grid for a while.
You don't want to drain your batteries while trying to enjoy yourself, right? That's why it's best to camper battery disconnect switch so that they're not being drained even if you forget or something goes wrong with the RV itself.
This article has been written for you to learn how beneficial the best RV battery disconnect switch is when it comes to caring for your RV.
Now that you know more about battery disconnect switches, it's time to try them out yourself. You can install one on your RV or store it in the garage over winter with ease if you have a battery disconnect switch.