Direct: (503) 987-4002
Main: (503) 987-4000


Expand your lithium battery bank safely and efficiently with the Expion360 400A Aluminum Bus Bar Set. Designed specifically for Expion360 Group 24 and Group 27 lithium batteries, these precision-fit bus bars allow you to parallel connect multiple batteries to increase overall amp-hour capacity while maintaining optimal electrical performance.
Rated at 400 amps, these high-conductivity aluminum bus bars are engineered to create a secure, low-resistance connection across compatible Expion360 60Ah, 80Ah, 95Ah, 100Ah, 120Ah, and 132Ah batteries. By minimizing resistance at the terminal interface, they improve current flow and overall system efficiency — critical for high-demand RV, marine, overland, and off-grid power systems.
Built to exact dimensions for proper terminal alignment, this bus bar set provides a clean, professional installation solution for expanding your lithium battery bank.
We ship throughout the United States. Most in-stock items leave our shop within 1–3 business days. Made-to-order, special-order, drop-shipped, freight, and oversized products may require additional processing or lead time. Any known special timing or availability information will be noted on the product page when applicable.
Orders placed outside of our normal business hours will be processed as soon as possible once our team returns during regular operating hours, Monday–Friday. Orders placed over the weekend or on a holiday will begin processing the next business day.
Eligible items may be considered for return within 30 days of delivery. All returns require prior authorization from PAD Overland. Return requests are subject to our return policy as well as any applicable manufacturer or supplier return requirements.
Approved customer-requested returns are subject to a 35% PAD Overland restocking fee, plus any additional return-related fees imposed by the manufacturer, supplier, or distributor.
Many products sold by PAD Overland include a manufacturer warranty. Warranty claims are subject to the individual manufacturer’s warranty terms and procedures. We are happy to help facilitate the process when possible. Please contact us with your order number, photos, and a description of the issue.
Questions about fitment, shipping, return eligibility, or a special-order product? Please contact us before placing your order. Our team is happy to help make sure you are ordering the correct product for your vehicle.
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