Victron BatteryProtect BP-220 - 220AMP - 6-35 VDC

The Victron BatteryProtect BP-220 is a heavy-duty battery disconnect and protection device engineered for serious automotive and mobile power applications where reliable voltage management is non-negotiable. Designed by Victron Energy—a leader in advanced battery management systems—this 220-amp rated unit is built for mechanics, off-road enthusiasts, and custom vehicle builders who demand intelligent circuit protection without the complexity of traditional relays. Whether you're running a custom dual-battery setup in a truck, protecting auxiliary systems in an RV, or safeguarding sensitive electronics in a marine vessel, the Victron BatteryProtect BP-220 operates silently and automatically to disconnect loads before battery voltage drops to dangerous levels.

At its core, the BP-220 uses a solid-state relay (no moving parts or contact wear) to monitor battery voltage across a wide 6–35 VDC input range, making it versatile across 12V, 24V, and 48V systems common in modified vehicles and specialty rigs. The 220-amp capacity handles substantial auxiliary loads—alternators, winches, lighting arrays, and inverters—without voltage sag or thermal stress, while advanced algorithms prevent nuisance disconnects during normal engine cranking or transient voltage dips. Its compact form factor (6 x 3 x 6 inches) and lightweight design (2.5 lbs) allow flush mounting in engine bays, battery boxes, or custom enclosures without taking up critical real estate. The Victron BatteryProtect BP-220 also features low-voltage shutdown logic that preserves battery state-of-charge and extends battery life by preventing deep discharge cycles—critical for lithium or AGM batteries that cost hundreds to replace.

Installers and mobile electricians favor the Victron BatteryProtect BP-220 for custom dual-battery systems, auxiliary power distribution, and high-current load management in trucks, vans, and expedition vehicles where a single battery failure can strand you. Its operation is transparent—no manual intervention, no pilot light, just silent, automatic protection that works around the clock. The unit integrates seamlessly into existing wiring harnesses using standard ring terminals and is compatible with both lead-acid and lithium battery chemistries, making it ideal for modern upgrades. Coupled with proper gauge cabling and a quality battery monitor, the Victron BatteryProtect BP-220 becomes the backbone of a professional-grade electrical system that handles demanding real-world use without compromise.