Auto Battery Master Switch with Remote, 240A Kill Switch 12V Remote Battery Disconnect Switch with Led Voltage Display Automatic

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Product Details

Auto Battery Master Switch with Remote, 240A Kill Switch 12V Remote Battery Disconnect Switch with Led Voltage Display Automatic

Application:
Long-term parking, power consumption of electronic devices, line aging, forgetting to turn off lights, etc. Disconnect Switches can solve the power consumption caused by such problems, and can extend the battery power and service life of cars.

Product Parameters:
Specifications:1.Electronic display model with two remote control keys;2.Regular model with two remote control keys
Voltage Rating:12V/24V
Current Rating:240A

Instantaneous current:1000A for 30 seconds
Standby Current:0.001A
Operating Temperature: -20℃-90 ℃
Operation Mode: ON-OFF
Operating Voltage :12 Volts
Contact Type :Normally Open

Connector Type:Plug In

Details:
Switch * 1Remote control * 2
Spring plate * 2
Anti wear pad * 1
Instruction manual * 1

Remarks :
1. The remote control can be paired with the device normally within the working voltage range
2. Manual button ON/OFF can be used to connect and disconnect the device within the working voltage range
3. Equipment with a power supply voltage below 6V or above 30V will automatically shut down and disconnect
4. If the power supply voltage is lower than the protection threshold voltage (11.8V/23.2V) for 60 seconds, an alarm will be triggered. If the duration is 120 seconds, the equipment will automatically disconnect to protect the battery
5. Voltage higher than 13.3V (12V system)/26.2V (24V system) RF remote control failure to prevent accidental touch of remote control buttons during driving, resulting in power failure during driving
6. When the voltage range is 6-18V, it self identifies as a 12V vehicle system and operates in response to the 12V system threshold point
7. When the voltage range is between 18-30V, it self identifies as a 24V vehicle system and operates in response to the threshold point of the 24V system
8. When driving, the battery voltage is relatively high, and the system enters a false triggering protection state
9. When igniting, the battery voltage is relatively low and the system enters the ignition misoperation protection state

Remote control matching instructions:
1. Interlock mode (applicable to vehicle system control) – Press the manual button ON continuously for 3 seconds, and the code indicator light will flash 3 times to enter the learning mode. Press the button on the remote control, and the code indicator light will flash 3 times after successful code matching. Then press the other button on the remote control, and the code indicator light will flash 3 times after successful code matching;
2. After entering the learning mode, if the learning code indicator light does not receive a remote control signal within 30 seconds, it will automatically exit the learning mode;
3. Clear code – Long press the manual button ON to flash the code indicator light 8 times, indicating that the clear code is complete (long press the manual button ON to flash the indicator light 3 times, 4 times, 5 times, 8 times in sequence); Among them, flashing 3 times is the interlock mode learning state, flashing 4 times is the self-locking mode learning state, flashing 5 times is the jog mode learning state, and flashing 8 times is the clear code state);

Common buyer operation questions are explained uniformly:
A:How can I change the button settings for key on/off according to my habits?
B:According to the instructions, re match the switch. Press and hold the ON button for more than 3 seconds. Long press the manual button ON and the code indicator light will flash 8 times to indicate that the code is cleared. (Long press the manual button ON and the indicator light will flash 3 times, 4 times, 5 times, and 8 times in sequence.); Among them, flashing 3 times is the interlock mode learning state, flashing 4 times is the self-locking mode learning state, flashing 5 times is the jog mode learning state, and flashing 8 times is the clear code state);

A:Do you have video instructions for the circuit breakers in your store?
B:Our circuit breaker has instructions for use. If you need, please contact customer service to obtain a product demonstration video. We are located in different times and spaces. You can purchase and leave a message first, and customer service will reply to you as soon as possible every morning.


Product specification and characteristics

1.Operating voltage range: 6-30VDC

2. Adaptive 12V vehicle system and 24V Vehicle System

3.Automatic alarm of defective threshold and automatic battery disconnect

4. Frequency 433.92 Mhz, matching self-locking mode

5. Indicator display (ON and OFF)

6.700uA ultra-low standby power consumption

7.Driving process and ignition error trigger protection

1. Operating temperature -20 degrees-+ 100.

2. Switch rated current 250A

3. Switching instantaneous current 500A

4. Loss protection threshold 11.8 V+-0.2V/23V+-0.2V

5. Loss of power delay 60 seconds alarm 120 seconds automatic disconnect

6. Standby current 700uA

1. The working voltage range of remote control and equipment can be normal pairing 

2. The working voltage range of manual button ON/OFF can be connected and disconnected equipment.

3.Supply voltage less than 6V or more than 3V, the equipment automatically shuts down and disconnects.

4.Power supply voltage below the protection threshold voltage (11.8 V/23.2 V) for 60 seconds alarm prompt, 120 seconds to automatically disconnect the device to protect the battery.

5.If the voltage is higher than 13.3 V (12V system)/26.2 V (24V system) , the RF remote control will fail to prevent the remote control button from accidentally touching the remote control during driving, which will lead to power failure.

6.The voltage range is 6-18V and the self-identification is 12V vehicle system, which works in response to the 12V system threshold

7.Voltage Range in 18-30V self-identification for the 24V vehicle system, response to the 24V system threshold work

8.When the battery voltage is relatively high, the system enters the trip-triggered protection state.

9.When the battery voltage is relatively low, the system enters the protection state of ignition misfiring.


1.Interlock mode (applicable to vehicle system control)-continuously press the manual key ON the code for 3 seconds and the indicator light flashes 3 times to enter the learning state, press the key ON the remote control, and then the indicator light flashes three times after the code is successfully aligned, then press another button on the remote control to code successfully after the indicator flashing three time.

2.After entering the learning state learning code indicator light within 30 seconds did not receive the remote control signal to automatically quit the learning state.

3.Clear code-long press the manual key ON to the code indicator flashing 8 times to indicate that the clear code is completed (long press the manual key ON to appear the indicator flashing 3 times, 4 times, 5 times, 8 times in turn; of which flashing 3 times is the interlock mode learning state, flashing 4 times is the self-lock mode learning state, flashing 5 times is the click-move mode learning state, flashing 8 times is the clear code state)

4.A set of 20 codes can be paired with 10 different remote controls at the same time.

3.Clear code-long press the manual key ON to the code indicator flashing 8 times to indicate that the clear code is completed (long press the manual key ON to appear the indicator flashing 3 times, 4 times, 5 times, 8 times in turn; of which flashing 3 times is the interlock mode learning state, flashing 4 times is the self-lock mode learning state, flashing 5 times is the click-move mode learning state, flashing 8 times is the clear code state)

Electronic Instruction Manual:
Instruction manual for magnetic retention car battery anti loss intelligent circuit breaker
Product specifications and characteristics
1. Working voltage range: 6-30VDC
2. Adaptive 12V car system and 24V car system
3. Automatic alarm for low battery threshold and automatic disconnection of battery
4. Frequency 433.92MHz, matched with self-locking mode
5. Indicator light display (on and off when connected)
6. 700uA ultra-low standby power consumption
7. Driving process and ignition accidental triggering protection
Product Parameters
1. Working temperature -20 ° C to+100 ° C
2. Rated current of switch 240A
3. Instantaneous current of switch 500A
4. Voltage loss protection threshold 11.8V+-0.2V/23V+-0.2V
5. Power loss delay alarm for 60 seconds, automatic disconnection for 120 seconds
6. Standby current 700uA

 

Item Specifics
High-concerned chemical:
None
Item Weight:
0.43kg
External Testing Certification:
ce
Reviews
(15)
Verified Buyer
C***n
2 May 2026 00:00

The location is unclear, but it works well. If the voltage drops below 12V and the operation stops, you can mechanically open the driver's side door with the car key.

Verified Buyer
Customer
19 Mar 2026 00:00

I tried it and it's really good. There is no problem with the product, and when I have an inquiry to the store, they handle it quickly. Anyway, the product is good, but I am very satisfied with the store's friendly customer service.

Verified Buyer
Customer
5 Mar 2026 00:00

Product as advertised. I reversed one of the connectors to fit the battery. The current it uses when turned off is practically zero. The multimeter (with an accuracy of mA) didn't even detect the current.

Verified Buyer
F***a
2 Mar 2026 00:00

I installed my car(2002 bmw e46). It was fitting very easy.

Verified Buyer
P***a
18 Feb 2026 00:00

It arrived on time. The delivery was flawless. The package contained everything that was listed in the description. After installation, it works perfectly. Thank you! I recommend it to those who want to install something like this.

Verified Buyer
Б***ч
16 Feb 2026 00:00

Everything matches the description. None of the buttons on the remote control are mixed up. Installed in CRV4. I had to twist the terminals and busbars so that they are almost directly on top of each other. Only in this case can you reach the device with the negative wire. For installation, you need wrenches 12, 13, 14, and for removing the tires (where the device's clamps are attached), you need a hex key or a Torx wrench. When the device is turned on, the headlights blink three times (maybe because of the alarm). It remains silent when turned off. You can only check the shutdown by trying to activate the alarm system - it will not respond. The reason for the installation is an unexplained leakage through circuit 29 of the underhood fuse. It wasn't there before. Leakage current up to 100-300 mA.

Verified Buyer
Customer
16 Feb 2026 00:00

Perfect! I really like the order I received. The touch is so pleasant and warm. Good quality for the price. I have been very satisfied with my purchase.

Verified Buyer
Customer
10 Feb 2026 00:00

Item as described. Good quality, actually better than described.

Verified Buyer
Е***ч
16 Jan 2026 00:00

The package is intact, the product matches the description, I recommend it 👍

Verified Buyer
8***r
13 Jan 2026 00:00

Very satisfied with this item, it works great now. No more having to open the hood all day to start with a booster.

Verified Buyer
Customer
12 Jan 2026 00:00

Works as expected, the range to turn on the switch is quite far but to turn is off you need to get close to is . For now i am very happy about it. And it can handle the amperage of a diesel pickup

Verified Buyer
Customer
11 Jan 2026 00:00

The F150 has a constant power supply, so I got frustrated having to disconnect the accessory power every time... It's working well... 👍

Verified Buyer
U***r
1 Jan 2026 00:00

Everything is great! I recommend the seller!!!

Verified Buyer
D***D
15 Nov 2025 00:00

Perfect, but consider making larger fixing plates because in Europe our batteries are not the same.

Verified Buyer
A***y
13 Nov 2025 00:00

This is the second one I've bought; this one is yet to be installed, but it's super practical for keeping the battery full without the hassle of unplugging and plugging. Worth the purchase.

Shipping & Returns

SHIPPING

We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have been shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 15-40 Business days
Canada, Europe 15-40 Business days
Australia, New Zealand 15-40 Business days
Central & South America 15-40 Business days
Asia 15-30 Business days
Africa 15-40 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

RETURNS

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of car accessories (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of https://www.carforaccessories.com

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Exchanges

If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Why Buy From Us

A few reasons why buy from us:

SAFE SHOPPING

We try our best to make your shopping experience not only pleasant, seamless and hassle-free, but also secure.

FREE SHIPPING

Enjoy flexible international shipping services that currently operate in over 200 countries across the world.

NEW ARRIVALS

Brand new products are available on a regular basis.

PRICE PROMISE

We don't want you to choose between the best value and the best service. That's why we offer competitive pricing.

EXCELLENT CUSTOMER SERVICE

Knowledgeable and professional support team is always happy to help you.

EASY TRACKING

Check your order status online. As easy as that!

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