Meet the new Sigma.

The new Sigma
Sigma is designed to be easy to install. Front-mounted terminals, a flexible build that mounts in multiple positions, and a compact footprint means the Sigma fits where you need it, including the underseat bay of your motorhome.

High capacity and high discharge currents, for setups that run heavier loads and bigger systems.
Run one unit or four in parallel. The system grows with you, without any change to the installation.

Front-mounted terminals make connections easy to reach and easy to work with, even in a tight underseat bay.
Whether you sail, navigate, race, or fish for fun or professionally, having reliable power is essential. Super B lithium batteries provide long-lasting, dependable energy for all types of vessels. With lithium iron phosphate technology (LiFePO4), you can navigate independently, free from noise, vibrations, or exhaust fumes.
Leisure boats and yachts prioritize comfort and safety. Super B lithium batteries enhance your onboard experience by providing silent, reliable power. Enjoy beautiful harbors and spots with no noise, vibrations, or exhaust fumes, ensuring a stress-free aquatic journey.
Super B lithium batteries are engineered for durability and safety. They charge quickly, discharge slowly, and hold their charge longer than lead-acid batteries. With a higher energy density, they require less space and weight—perfect for leisure marine applications.
Spend less time charging and more time on the water. Super B lithium batteries can fully recharge within one hour, giving you the freedom to extend your journey without compromise.
Store your boat over long periods without worry. With a 10x lower self-discharge rate than lead-acid batteries, Super B lithium batteries are ready to power your next adventure whenever you are.
Most batteries force a compromise: you settle for less capacity than you wanted, or give up the space you needed for the rest of your system. The Sigma was designed to end that trade-off, with the capacity you’re after in a battery that installs where it suits you.
That changes what’s possible. The inverter and the charger go where you want them. And when you add solar, or a second fridge, or just want more days off-grid, the Sigma grows with your system.


CAN, CANopen, RV-C, Victron, LIN (CI-BUS, VW-LIN) and Bluetooth, plus three configurable IO contacts for inverter and generator control.

Precision cell matching, thermal management across extremes, proprietary software, data logger, and mechanical robustness that shrugs off vibration, shock and heat.
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