Victron BatteryProtect BP-65 - 65AMP - 6-35 VDC

The Victron BatteryProtect BP-65 is a critical battery management device engineered for any serious vehicle modification or auxiliary power system. Whether you're running dual battery setups for off-road expeditions, powering winches, auxiliary lighting, or managing high-draw aftermarket electronics, this 65-amp battery isolator protects your primary starting battery from discharge while safeguarding auxiliary systems from voltage drops. Built by Victron Energy—a trusted name in precision power management—the BP-65 is purpose-built for mobile platforms where battery reliability directly impacts performance and safety.

The Victron BatteryProtect BP-65 operates across a 6 to 35 VDC input range, making it compatible with 12V, 24V, and hybrid voltage systems found in trucks, RVs, marine platforms, and expedition vehicles. Its 65-amp capacity handles the current demands of modern auxiliary loads without thermal stress or voltage regulation failure. The device uses intelligent battery voltage sensing to automatically isolate loads when the primary battery voltage drops below a safe threshold, then reconnects when voltage recovers—eliminating the need for manual switching or complex relay configurations. This automatic protection logic ensures your engine-start battery maintains sufficient charge reserve while your auxiliary systems operate independently, a critical feature when running compressors, high-output lighting, or refrigeration on extended trips.

Mechanics and fabricators installing secondary power systems in overlanding rigs, service trucks, and emergency vehicles rely on the BP-65 to eliminate parasitic drain and voltage conflicts between systems. Its compact 3 x 3 x 5 inch footprint and lightweight 0.5 lb design allow integration into tight engine bays, custom battery boxes, or distributed power distribution setups without significant space penalty. Installation requires direct battery connections and low-voltage signal wiring—straightforward integration into any 12V or 24V automotive electrical architecture, whether OEM or heavily modified. The BP-65 is ideal for owners upgrading to lithium auxiliary batteries, installing high-amperage inverters, or adding multiple 12V loads without compromising starter reliability.