12V Battery Disconnect Switch with LED Digital Voltage Display

Keep your vehicle, boat, or RV electrical system safe and secure with this heavy-duty 12V Battery Disconnect Switch. Built from high-quality brass and ABS, this top-post kill switch features a built-in LED digital voltage display so you can monitor your battery status at a glance — anytime, anywhere.

Key Features

LED Digital Voltage Display: Real-time battery voltage readout (5–80V DC) — no more guessing your battery status. The display draws zero power when the switch is in the OFF position, so your battery stays protected.
Top Post On/Off Switch: Simple 2-position (ON/OFF) operation with a 250A DC continuous rating, 1000A DC cranking, and 2-way circuit type. Supports operating voltages from 12V to 48V.
Easy Installation: Installs on the negative terminal of the battery. Comes with a negative battery clamp and tapered post for a quick, secure, and hassle-free setup.
Superior Build Quality: Constructed from durable ABS plastic and copper battery clamp with a tapered post for excellent electrical conductivity and long-lasting reliability.
Wide Compatibility: Ideal for cars, marine vessels, boats, RVs, campers, travel trailers, trucks, ATVs, battery banks, and other DC-powered equipment.
Battery Protection: Safely isolates the electrical system to prevent excessive discharge when your vehicle or boat is not in use.

Specifications

Material: Brass + ABS
Size: 13.5 cm (5.31 in)
Screw Diameter: Imperial 3/8" (~9.525 mm / 0.38 in)
Rated Current: 12V, 300A
Display Voltage Range: 5–80V DC
Operating Voltage: 12–48V DC
Continuous Rating: 250A DC | Cranking: 1000A DC
Color: Red
Available Polarity: Negative or Positive pole options
Package Includes: 1x Battery Disconnect Switch with LED Digital Voltage Display

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Frequently Asked Questions

Q: What voltage systems is this battery disconnect switch compatible with?

A: This battery disconnect switch is compatible with DC systems ranging from 12V to 48V, making it suitable for cars, boats, RVs, ATVs, trucks, campers, and battery banks. The LED digital display reads voltages from 5V to 80V DC.

Q: Does the LED voltage display drain the battery when the switch is off?

A: No — when the switch is in the OFF position, the LED digital voltage display draws zero power from the battery. This means you can safely isolate your battery without any parasitic drain from the display.

Q: What is the rated current capacity of this battery disconnect switch?

A: This switch is rated at 300A at 12V, with a continuous DC rating of 250A and a cranking rating of 1,000A DC, making it robust enough for automotive, marine, and heavy-duty applications.

Q: Is this battery disconnect switch easy to install?

A: Yes — it comes with a negative battery clamp and a tapered post for straightforward installation on the negative terminal of your battery. The design is engineered for quick and simple setup compared to traditional battery switches.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.