Ampper Side Post Battery Disconnect Switch – Knife Blade, 12-24V, 200A

Ampper Side Post Battery Disconnect Switch: Reliable Power Control for Your Vehicle, Boat, or RV

The Ampper side post knife blade battery disconnect master switch is designed to give you quick, straightforward control over electrical power. Built for 12V–24V systems, it helps you isolate and secure the electrical setup when a vehicle or vessel is not in use. The switch’s robust construction and simple operation aim to offer peace of mind without unnecessary complexity.

Use cases span cars, boats, RVs, and ATVs where you want to prevent parasitic drain and ensure a clean shutdown. The unit is compatible with GM side post batteries or other batteries that feature a 3/8" side post terminal, making it a versatile addition to many rigs. The knife blade mechanism is designed for a clean, decisive cut—lift the knife to disconnect, and power is safely halted. When you’re ready to resume, reengage the circuit with a smooth return to the on position.

Designed with durability in mind, the brass body resists rust and corrosion, contributing to long-term reliability in varied climates and marine environments. The kit includes hardware for a straightforward installation, and the switch can operate standalone or be linked with other switches for a customized power management system.

Key Benefits at a Glance

• DC compatibility: 12V–24V system with 200A continuous capacity and 600A momentary at 12V for demanding starts
• Knife blade action: lift to cut power, then return to re-engage the circuit
• Durable brass construction: rust and corrosion resistant for long-term safety
• Complete kit: includes 1 switch, short bolt, 2 pairs of 3/8" side post bolts, 2 spacers, 2 washers
• Flexible installation: can stand alone or lock together with other switches

What’s in the complete kit ensures you’re ready to install: a compact, robust switch plus all the necessary mounting hardware. The design emphasizes safety and ease of use, enabling a clean cut of power with minimal effort. This is not a guarantee of performance, but a practical tool to help you manage electrical systems with greater control.

Practical Scenarios

• Seasonal vehicles: disconnect the battery to prevent drain during storage.
• Marine use: secure electrical systems on boats when not underway or in docked conditions.
• Remote vehicles: simplify powering down multiple units in caravans, campers, or ATVs.

Note: This switch is intended to isolate power safely and is best used as part of an overall electrical management strategy. For installation, follow standard safety procedures and consult your vehicle’s manual as needed.