Wherever your adventures lead, the Enerdrive B-TEC ULTRA 300Ah delivers dependable, high-performance power with industry-leading safety. Ideal for serious off-grid travellers and demanding professional setups.

Uncompromising Power and Proven Safety: With cutting-edge lithium technology, the B-TEC ULTRA delivers maximum power output while meeting the highest global safety standards. Whether you’re powering an off-road rig, caravan, or remote setup, this battery is built to perform—reliably and safely—in the toughest conditions.

Weather Any Storm with IP67 Protection: Built to brave the elements, the B-TEC ULTRA boasts an IP67 rating—making it fully waterproof (submersible up to 1 metre for 30 minutes) and 100% dust-tight. Mount it externally without worry. It’s tough enough for harsh terrains, wet environments, and dusty tracks. Perfect for caravans, 4WDs, trailers, and outdoor installations where rugged protection is essential.

Engineered for High-Performance Loads: Power your gear with confidence. The B-TEC ULTRA handles demanding electrical loads with ease, making it ideal for air compressors, induction cooktops, inverters, fridges, winches and more. It has a scalable design and can connect up to 4 batteries in series and four in parallel.

Certified Safe with IEC62619: Safety isn’t optional—it’s essential. Not all lithium batteries are created equal. The B-TEC ULTRA is IEC62619 certified, meaning it meets one of the highest global safety standards for lithium-ion batteries. That’s important because in remote conditions, failure isn’t an option. The B-TEC ULTRA is IEC62619 certified at both the cell and battery pack level, compliant with the strictest international standards which ensures complete safety from the inside out. IEC62619 certification provides:

• Rigorous Testing: IEC62619 covers electrical, mechanical, and environmental stress testing. Batteries must pass short-circuit, impact, crush, overcharge, and thermal stability tests.
• Global Compliance: It’s a certification recognised worldwide and often required in professional, commercial, and industrial environments.
• Peace of Mind: Many cheap lithium batteries skip this certification entirely, leaving you with unknown risks. B-TEC ULTRA doesn’t cut corners. It delivers verified safety, end to end.

Smart Protection with Built-In Battery Management System (BMS): The B-TEC ULTRA is equipped with a high-performance BMS that continuously monitors and protects every cell inside the battery. Features include overcharge & over-discharge protection, short-circuit & thermal shutdown, temperature-controlled charging and high/low voltage cutoff

Cold-Weather Ready with Integrated Cell Heater:  No more charging worries in freezing temperatures. The integrated heater, managed automatically by the BMS, brings the cells up to safe charging temps—so your battery stays operational, even when the mercury drops.

Wireless Monitoring at Your Fingertips: With the Enerdrive B-TEC App (iOS & Android), you can wirelessly check real-time performance and battery status with just a tap. You’ll know exactly how your battery is performing, anytime, anywhere, including:

• Battery voltage, current, SOC
• Temperature & cycle history
• Individual cell voltages
• System alarms and alerts
• Event tracking & diagnostics

Packed with Practical Features: On/Off Switch: Cut power to the terminals instantly, perfect for safety or long term storage. An integrated display, which LED status indicators show charge level in 25% increments and shows any fault alerts directly on the battery. Battery tray & strap included for fast, hassle-free installation.

Enjoy total peace of mind with Enerdrive’s 5-year warranty and lifetime support from a local Aussie team. Explore more. Worry less. The Enerdrive B-TEC ULTRA is ready when you are.