Self Storage in Battle Ground, WA at Principal RV & Self Storage, Your Trusted, Local Provider Welcome to Principal RV & Self Storage. We're the most trusted, local storage choice in Battle Ground, Washington, offering heated storage units and RV storage. We purpose-built our facility to meet your storage requirements. This includes implementing comprehensive security measures, staffing the facility with knowledgeable storage professionals, and making our rates affordable and competitive. When you need a place to put your extra things, stop by for a tour. You'll soon realize we're Clark County's finest mini storage facility.