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





Keep your lithium house batteries charged efficiently while driving with the Expion360 12V 25A DC-DC Charger. Designed specifically for LiFePO4 (LFP) deep cycle batteries, this compact mobile charger pulls power from your vehicle’s alternator through the chassis battery and delivers a precise 2-stage charging profile optimized for lithium chemistry.
Using a constant current (CC) and constant voltage (CV) charging algorithm, the charger safely delivers 14.6V at 25 amps — ensuring rapid, controlled charging while protecting battery longevity. Whether you're building out a camper van, upgrading an RV system, or outfitting an overland vehicle, this DC-DC charger provides reliable charging performance on the move.
Its compact footprint makes installation simple, even in tight electrical bays. With IP68 waterproof protection and fully potted circuitry, the unit is engineered to withstand harsh mobile environments. Ignition control functionality ensures the charger operates only when the vehicle is running, preventing unwanted battery drain.
Compatible with all alternator types, including modern smart alternators, the Expion360 25A DC-DC charger is an ideal solution for efficient, on-the-road lithium charging.
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.
Thanks for subscribing!
This email has been registered!
Please read our full Terms of Service and Refund Policy.