Something new is coming Revealed at Caravan Salon Düsseldorf, 28 Aug–6 Sep Caravan Salon, 28 Aug–6 Sep More information

high capacity, versatile installation

Meet the new Sigma.

Simarine PICO Display ×
Super B

Complete control. Seamless integration.

The new Sigma

The Sigma is built for setups that ask more of their battery: high capacity and high discharge currents for systems with serious energy demands.

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.

built for high demand

High capacity and high discharge currents, for setups that run heavier loads and bigger systems.

Scales with your setup

Run one unit or four in parallel. The system grows with you, without any change to the installation.

Terminals on the front

Front-mounted terminals make connections easy to reach and easy to work with, even in a tight underseat bay.

Sigma 230Ah 200A Sigma 460Ah 200A Sigma 230Ah Duo
Energy 2,944 Wh 5,888 Wh 5,888 Wh
Max. charge current 200A 200A 350A
Discharge current continuous 200A 300A 350A
Discharge pulse current 350A 350A 600A
Weight approx. 22 kg approx. 40 kg approx. 44 kg
Dimensions 351 x 182 x 189 mm 351 x 356 x 189 mm 351 x 364 x 189 mm
Case material UL 94 V-0 (flame-retardant) UL 94 V-0 (flame-retardant) UL 94 V-0 (flame-retardant)

Sigma 230Ah 200A

Energy
2,944 Wh
Max. charge current
200A
Discharge current continuous
200A
Discharge pulse current
350A
Weight
approx. 22 kg
Dimensions
351 x 182 x 189 mm
Case material
UL 94 V-0 (flame-retardant)

Sigma 460Ah 200A

Energy
5,888 Wh
Max. charge current
200A
Discharge current continuous
300A
Discharge pulse current
350A
Weight
approx. 40 kg
Dimensions
351 x 356 x 189 mm
Case material
UL 94 V-0 (flame-retardant)

Sigma 230Ah Duo

Energy
5,888 Wh
Max. charge current
350A
Discharge current continuous
350A
Discharge pulse current
600A
Weight
approx. 44 kg
Dimensions
351 x 364 x 189 mm
Case material
UL 94 V-0 (flame-retardant)

All models: 12.8V nominal · LiFePO4 · integrated protective BMS with smart heating · Bluetooth · 5,000+ cycle life · operating range -30°C to +65°C · UN ECE R10, FCC Class B, ICES-003, EMC, RED, UN 38.3, UN3480 Class 9 certified

Reliable power for your aquatic journey

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.

Optimal comfort and safety

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.

Lithium advantages for leisure marine

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.

Fast Charging for Longer Adventures

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.

Low Self-Discharge for Peace of Mind

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.

Room to build

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.

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