Heavy Duty Anti-Leakage Battery Disconnect Switch – Pure Copper

Instant Power Isolation, Zero Battery Drain Twist to cut power in under a second—no tools, no cable removal, no risk of slow discharge during storage or standby. Solid Copper Conductivity Crafted from high-purity T2 copper for minimal resistance (< 0.2 mΩ), max heat tolerance of 85 °C, and long-term corrosion protection—even in salty or snowy environments. Compatible with 12V & 24V Systems Rated for 300 A continuous and 1000 A peak—handles everything from compact cars to full-size RVs, marine batteries, trucks, and off-grid setups. Leak-Block O-Ring Seal Built-in nitrile gasket insulates against micro-currents that slowly deplete charge—ideal for vehicles in storage or seasonal use. IP65 Weatherproof Housing Sealed against dust, rain, and grime—reliable performance whether you're off-roading, boating, or parked in a storm. Specifications Rated Current: 300 A continuous / 1000 A peak (5 s) System Voltage: 12 V or 24 V DC Materials: T2 copper, ABS knob, nitrile O-ring Temperature Range: -40 ℃ to 85 ℃ Mounting: Fits 17 mm battery posts; secures with M8 nut FAQ Q: Will disconnecting erase ECU memory? A: Yes, full cutoff resets radios and ECU. Back up settings before extended storage. Q: Can I install it on the negative terminal? A: Absolutely. Installing on the negative side helps eliminate parasitic ground loops. Q: Do I need special tools to install? A: Just a 13 mm wrench to loosen your clamp. A T-handle is included to remove the switch knob if needed.