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Joinfworld Top Post Battery Disconnect Switch 12V-48V Battery Kill Switch Negative On/Off Battery Switch for Cars, Vehicles, RVs and Boats

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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Apr 30
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Color: On-Off Top Post 250A


Features

  • On Off Battery Switch: This top post battery disconnect switch features on/off 2 position; Rating: 250A DC Continuous,1000A DC Cranking; Circuit Type: 2 way; Operating Voltage: 12-48 Volts. The "On/Off" functionality is straightforward yet effective, offering an easy way to manage power without fuss
  • Ease of Installation: This battery disconnect switch 12v 48v comes with negative battery clamp and tapering post. Our marine battery switch is installed on the negative of the battery, our unique design also makes your installation more convenient and simple compared with other's
  • Superior Quality: The battery cut off switch is made of high quality ABS plastic, durable for safe use. It also comes with copper battery clamp and tapered post, which is safer and more reliable in electrical conductivity
  • Safety Protection: This marine battery switch 12v can safely disconnect the battery, protecting batteries from excessive discharge when vehicle or boat is not in use
  • Wide Application: This top post battery disconnect switch is suitable for DC 12 - 48V system to isolate and secure the electrical system, can stand alone or be locked together with other switches. It is widely used for Car, Marine, Boat, RV, Camper, Travel Trailer, Truck, ATV, UTV, Battery banks and other electrical equipment's switch

Operation Mode: ON-OFF


Current Rating: 250 Amps


Operating Voltage: 12 Volts


Contact Type: Normally Open


Connector Type: Crimp


Brand: Joinfworld


Switch Type: Kill Switch


Terminal: Spade


Material: Copper, Nylon


Item dimensions L x W x H: 5.5 x 2.2 x 2.5 inches


Operation Mode: ON-OFF


Current Rating: 250 Amps


Operating Voltage: 12 Volts


Contact Type: Normally Open


Connector Type: Crimp


Switch Type: Kill Switch


Terminal: Spade


Circuit Type: 2-way


Mounting Type: Surface Mount


Actuator Type: Hinge Lever


Number of Positions: 2


Upper Temperature Rating: 90 Degrees Celsius


Control Method: Touch


Color: On-Off Top Post 250A


Item Dimensions: 5.5 x 2.2 x 2.5 inches


Unit Count: 1.0 Count


Number of Items: 1


Material Type: Copper, Nylon


Contact Material: Copper


International Protection Rating: IP67


Specification Met: CE


Brand Name: Joinfworld


Model: KY-ASW-A71002


Manufacturer: Joinfworld


Included Components: 1 x Top Post Battery Disconnect Switch


Warranty Description: 2 YEAR


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Switch works well and is of good quality
Color: On-Off Side Post 250A
Easy to install on Yamaha waverunner battery. Supplied bolts were too large for battery terminal and battery cable so I used the existing bolts and some washers to attach the switch.
Reviewed in the United States on March 8, 2026 by Surf96814

  • Worth the purchase to save batteries
Color: On-Off Top Post 250A
Easy install, work as intended and saves our vehicle batteries when the vehicle is just sitting for months. Worth the money.
Reviewed in the United States on March 10, 2026 by Amazon Customer

  • Good product
Color: On-Off Side Post 250A
Put it on my atv works great bolts to big for my battery post . Just had to figure out how to mount it but would recommend it
Reviewed in the United States on March 23, 2026 by Big C

  • Works as intended and a good price
Color: On-Off Top Post 250A
Works as intended, seems to be quality made. Shipped next day. Spreading the terminal was scary (read that they break) it didn't! Easy install, good value, saves battery life, nice compact size
Reviewed in the United States on March 11, 2026 by Newbomb Turk

  • Great value for the money
Color: On-Off Side Post 250A
Works great. Easy easy to install, as robust as I had imagined, and I am happy with.
Reviewed in the United States on March 22, 2026 by Scott

  • Incredible purchase for me !!!!
Color: On-Off Top Post 250A
This product been very helpful to me.My car has electronic issue with the AC.The dealer can’t even fix.My car randomly will say AC off due to high engine heat.There is nothing wrong with the car.My husband would have to disconnect battery and everything would reset.It would always happen on the hottest days living in the South we could be over 100 easy.My husband installed this recently and all I have to do is give it a turn one way then back.My problem is fixed my AC back on. ... show more
Reviewed in the United States on March 22, 2026 by Reilly mom

  • Battery/Safety disconnect Switch
Color: On-Off 275A
Used it as a winch disabling switch located in the engine compartment next to the battery for a 2021 Jeep Gladiator Mojave. Highly recommend to have to prevent someone from using the winch or even steeling you winch parts. It was a project for me because I had to custom.make a bracket to secure the switch in a safe accessible location. Installation was straight forward. You need the terminals for the electrical connections. Switch is well built, has indicator sticker that shows on or off. It has 4 removable panels on the sides for installation options. It's easy to manipulate compared to others that are very stiff or hard to manipulate. Highly recommend this switch for the fraction of the cost of other high end of same quality. The only downfall I found was not having instructions; however, there are plenty of online videos. ... show more
Reviewed in the United States on March 22, 2026 by Eliezer Perez

  • Great product if you want a simple cut off switch
Color: On-Off Top Post 250A
I bought this for my 14' Dory when I rewired my boat. I initially thought it went on the positive post my mistake. After I figured out it went on the negative post it was on and working in minutes. This is a great option if your looking for a simple cut off switch. What I don't know is how long it will last in the saltwater environment I fish in. I did coat it with diegrease which should help. ... show more
Reviewed in the United States on March 16, 2026 by Sharon K Hyder

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