Protect Your Trailer Batteries with a Lock

California Immobilizer Battery Box Lock installed on RV battery box

Battery theft from trailers is a growing problem across North America. Whether you own a rugged utility trailer or a high-end Airstream, your batteries are a tempting and vulnerable target—often exposed, easily accessible, and expensive to replace. That’s where the California Immobilizer Battery Box Lock comes in.

Designed specifically to secure battery boxes on trailers, this rugged device is built from hardened steel and engineered to resist tampering. It acts as a visible deterrent, sending a clear message: this battery is locked down tight. For recreational trailer owners, that’s a game-changer. Batteries can cost hundreds of dollars, and replacing wiring or repairing vandalism only adds to the headache.

For Airstream owners, the stakes are even higher. These premium trailers rely heavily on onboard power for lighting, refrigeration, heating, and security systems—even when off-grid. A stolen battery can ruin a trip or create dangerous situations, especially in remote areas. A Battery Box Lock keeps these critical power sources secure, preserving your mobility and peace of mind.

Easy to install and virtually maintenance-free, the California Immobilizer Battery Box Lock fits most standard battery boxes, making it a universal solution for all trailer types. It’s trusted by RV enthusiasts, boondockers, and trailer fleet operators who need reliable, long-term protection.

Ultimately, this small investment can save you hundreds—or even thousands—by preventing theft and damage. Whether your trailer is parked at a campsite, in a storage lot, or even outside your home, the Battery Box Lock ensures your power stays where it belongs.

When it comes to trailer security, don’t overlook your batteries. Lock them down with confidence using the California Immobilizer Battery Box Lock, and protect the power behind every adventure.