Mastervolt announces expansion of its lithium-ion battery range with the all-new MLI Ultra 1250 battery providing an alternative green energy source

Mastervolt logo

Feb 22, 2022

Mastervolt, part of Advanced Systems Group (ASG), announced the introduction of the new MLI Ultra 1250, the most compact battery in Mastervolt’s range offering five times more energy storage and 70 percent more space and weight savings compared to traditional lead acid batteries. The newest addition to Mastervolt’s Lithium-Ion Range was shown at the Miami International Boat Show on February 16-20. 

The MLI Ultra 1250 has a lifespan 3500 cycles and a depth of discharge (DOD) of 80 percent due to the nearly complete absence of self-discharge and the minimal build-up of the ‘memory effect’. As with the entire MLI Ultra series, the MLI Ultra 1250 can be recharged within 60 minutes.

“At Mastervolt, we’re committed to designing and innovating the next generation of the Lithium-Ion batteries and alternative energy sources,” said Brett Dibkey, President of ASG. “The official launch of the MLI Ultra 1250 represents an exciting milestone in our path to lead the industry in this effort, and we’re thrilled to bring this revolutionary design to market.” 

Available in both 12 V and 24 V models, the MLI Ultra 1250 is ideal for both marine and mobile applications where space is a premium. The high energy density within the battery cells were designed as a drop-in replacement for size Group 31 and Group 49 batteries weighing considerably less at 15 kg. Additional product features include:

  • Self-balancing algorithm – Equipped with a Mastervolt Battery Management System (BMS) that optimizes use of each cell, this self-learning balancing algorithm predicts the behavior of each battery cell and balances proactively, resulting in a more efficient charge cycle and a longer battery life
  • Compatibility – The MLI Ultra 1250 works with MasterBus, CZone and is NMEA2000 compatible, enabling a broad range of monitoring and system integration options while maximizing the lifespan of the batteries.
  • All weather performance – The MLI series delivers ultimate Lithium-Ion performance even under the harshest conditions, such as high charge and discharge currents, wet environments and mechanical shocks or vibrations. Additionally, the MLI Ultra 1250 is equipped with an integrated thermal heat-pad and sophisticated low-temperature control to ensure maximum charging performance at freezing temperatures.
  • Integrated battery switch – The 200-amp continuous rated integrated battery safety switch disconnects the battery cells in case of abnormalities. Algorithms analyze details of the battery condition, including charge current, temperature, and cell details.
  • Plug-and-play communication – For faster installation, users can wire the MLI Ultra 1250 to any supported Mastervolt charger by simply connecting the communication cable, the battery will automatically configure the charger to match the battery without the need for configuration tools. Additionally, the MLI Ultra 1250 can be connected in parallel as part of a large battery bank.

Visit .  

Related Posts

Vote for Dorothy, BC’s Iconic Sailing Yacht, in the Classic Boat Awards 2024


You are invited to support an historic, recently restored and refitted BC sailboat, Dorothy, by voting for her in a contest, the Classic Boat Awards 2024, run by the UK’s prestigious Classic Boat Magazine. The Maritime Museum of BC (MMBC), owner of this sleek, wooden vessel built in 1897, believes she’s the oldest sailboat in Canada. As she isn’t the only classic yacht in the running, you’re urged to go online and vote for her in the category of Restored Sailing Vessel under 40ft.

Read More

Need to Catch up on News This Week?

Every Tuesday we publish a fresh Digest with informative articles pertaining to the Canadian boating and marine industry. Stay up to date with the latest products, research and industry developments.

Missed an Issue of Boating Industry Canada News Week? If you’re looking for a specific issue, or simply want to catch up on previous issues, check out our Boating Industry Canada News Week Archives.

Not signed up for News Week? Subscribe here.

Even more BALIs at BALI

CATANA GROUP launches its 14th BALI CATAMARANS model, the BALI 5.8, for the brand’s 10th anniversary! Always bigger, always more powerful, always more… BALI!

This time, the new BALI 5.8 is completing the range from the top down.

Read More

Water heater offers dynamic heat source choices

Hubbell-Marine Stainless steel outlet covers
Hubbell-Marine Stainless steel outlet covers

After a long day on the water, having ample supplies of hot water for multiple showers and meal preparation is a welcome luxury. The 1700 Series Marine Water Heater from Raritan Engineering was created specifically for marine use. With a proven long-life design, it’s available with a 115V AC or 240V AC heating element, and the option to include an innovative heat exchanger that uses the vessel’s hot engine coolant.

Read More