Relion Batteries

Why RELiON Stands Apart in the Lithium Battery Category

When it comes to advanced energy storage, RELiON has become one of the most recognized names in the battery industry — and for good reason. The brand has built its entire identity around a single chemistry: Lithium Iron Phosphate (LiFePO4). Unlike other lithium-ion formulations, LiFePO4 is widely regarded as the most thermally stable and safest lithium chemistry available, making it a compelling choice for demanding applications ranging from marine vessels and RVs to off-grid solar systems and specialty vehicles.

The RB Series: A Deep Cycle Lineup Built for Real-World Use

RELiON's flagship RB Series covers an impressive voltage and capacity range. With one of the largest LiFePO4 product offerings available — including 12V, 24V, 36V, and 48V batteries — RELiON leads the industry in innovation, quality, and reliability. Models such as the RB35, RB75, RB100, RB200, and RB300 offer scalable amp-hour capacity to match everything from compact kayak electronics to full house-bank setups on sailboats. RELiON lithium batteries are available in a variety of BCI standard sizes for easy drop-in replacement.

Performance metrics set the RB Series apart from traditional alternatives. Rechargeable RELiON lithium batteries cycle 5,000 times or more, and higher rates of discharge minimally affect cycle life — a stark contrast to lead-acid batteries, which typically deliver only a few hundred cycles. RELiON lithium batteries typically weigh one-third less and provide up to 50% more energy than traditional flooded, AGM, or GEL lead-acid batteries. That weight savings translates directly into better handling, improved performance, and more usable space.

The LT Series: Cold-Weather Charging Made Simple

One of RELiON's most innovative product lines is the LT (Low Temperature) Series. RELiON's LT Series is specifically designed for cold charging, utilizing charge current to heat the battery before allowing charge — meaning you can start the charge below 0°C (32°F). The system features proprietary technology which draws power from the charger itself, requiring no additional components, making the entire process of heating and charging completely seamless. This makes LT Series batteries ideal for RV owners, off-grid cabin setups, and boaters who operate in northern climates.

Built-In Battery Management and Safety Standards

RELiON batteries feature a built-in Battery Management System (BMS) that protects against harmful conditions, ensuring the safety and longevity of your investment. Many models in the lineup meet UL, UN, CE, and IEC certifications , giving buyers confidence that each battery has been rigorously tested for safe operation. RELiON lithium batteries are maintenance-free — no watering, no corrosion — and their low self-discharge means the batteries don't lose capacity when idle.

Award-Winning Innovation

RELiON Battery has been awarded a 2024 Top Product Award by Boating Industry Magazine for its RB36V40 marine lithium battery. The RB36V40 is designed for marine electronics and trolling motors, delivering consistent power with a lightweight, maintenance-free design that ensures longer run times, faster charging, and a longer lifespan than traditional lead-acid batteries — built to handle tough marine conditions.

Whether you are upgrading a trolling motor setup, powering an RV off-grid, or building a renewable energy storage bank, RELiON's battery lineup offers a proven, low-maintenance solution with a long service life. Explore the full range of RELiON products to find the right voltage, capacity, and series for your application.