The Mastervolt MLI Ultra 12/6000 Lithium Ion battery is engineered for heavy-duty marine applications. Designed to perform under high charge and discharge currents, humid environments and mechanical vibration, this 12V LiFePO4 battery delivers extreme reliability.

Its combination of high-quality lithium iron phosphate cells and an integrated Mastervolt Battery Management System (BMS) inside a robust IP65-rated electronic housing ensures maximum safety and performance.

With a nominal capacity of 460 Ah and an energy capacity of 6000 Wh, the MLI Ultra 12/6000 is designed for advanced onboard power systems requiring high energy storage.

Intelligent BMS and integration

The integrated BMS:

• Optimizes each individual cell
• Protects against overvoltage, undervoltage and overtemperature
• Controls the mandatory safety relay
• Provides integrated battery monitoring

The battery supports:

• MasterBus communication
• CZone compatibility
• NMEA 2000 communication

Enabling full integration into modern marine electrical systems.

Key features

• Nominal voltage: 12 V
• Capacity: 460 Ah
• Energy capacity: 6000 Wh
• 3500 cycles at 80% DOD (25°C)
• Max. discharge current (20 min): 500 A
• Max. continuous discharge current: 300 A
• Peak discharge current: 1800 A (10 sec.)
• Max. charge current: 460 A
• Recommended charge current: ≤ 160 A
• Charge and discharge rates up to 2.5 C
• Unlimited parallel connection
• Series connection up to 10 batteries
• IP65 electronic compartment
• Dimensions: 622 x 197 x 355 mm
• Weight: 46.7 kg
• Certifications: CE, E-Mark, UL1642 (cells only), FCC, RVIA compliant
• Designed according to UN38.3

⚠ A 12V safety relay (7700B-BSS) is mandatory according to Mastervolt installation requirements.

The Mastervolt MLI Ultra 12/6000 delivers powerful, maintenance-free lithium energy for demanding marine installations.

Limited Time Promotion – Mastervolt MLI Ultra 12/6000

A temporary 20% RRP reduction applies to the Mastervolt MLI Ultra 12/6000 within the EMEA region.

• Promotion period: March 2 – March 31
• While stocks last
• Article number: 66016000

This limited-time offer makes it an ideal moment to upgrade to high-capacity marine lithium energy storage.

Important ordering and pricing information

When you order the Mastervolt MLI Ultra 12/6000, the product will be placed on order with the supplier starting March 2nd. Delivery time depends on availability at Mastervolt.

The price currently displayed for this product reflects the net promotional price.

Contact Nauticsale for availability and full terms.

Order now at Nauticsale for fast delivery and expert advice.