Experience ultimate performance with the Mastervolt MLI Ultra Lithium Battery.

The Mastervolt MLI Ultra Lithium Battery is designed for heavy duty and extreme performance, making it perfect for use in harsh conditions. Its sturdy and waterproof housing combines with the best Lithium-Iron Phosphate cells and a proprietary Battery Management System to ensure optimal use of each individual cell. The battery also features integrated communication with NMEA2000, CZone, and MasterBus, allowing for complete system integration and maximum charging efficiency. Plus, with a self-learning balancing algorithm and integrated thermal heat-pad, the MLI Ultra offers fast charging and a longer battery cycle life. With its integrated battery switch and plug-and-play installation, the MLI Ultra is the ultimate choice for power and reliability.

Self-Learning Balancing Algorithm

The MLI Ultra batteries feature an innovative self-learning balancing algorithm. This advanced technology anticipates the behavior of each battery cell, enabling proactive balancing. This results in faster and more efficient charging cycles while minimizing stress on the cells, thereby extending the battery cycle life significantly.

Freezing Cold Weather Performance

Equipped with an integrated thermal heat-pad and sophisticated low-temperature control, the MLI Ultra 1250 ensures optimal charging performance even in freezing temperatures. By utilizing the connected charger to power the heat-pad, the battery maintains cell temperatures above freezing point during cold weather conditions. This guarantees the fastest charging speeds and maximum power output even on the coldest days.

Integrated Battery Switch with Enhanced Safety Features

The MLI Ultra 1250 incorporates an integrated battery safety switch that disconnects the battery cells in case of abnormalities. Utilizing intelligent algorithms, it analyzes various parameters including charge current, temperature, and cell details to ensure safety. Unlike other switches with current limitations, this system enables continuous energy provision of up to 200 Amps, ensuring reliable power delivery.

Plug-and-Play Auto Configuration

Simplify the installation process with the MLI Ultra 1250's plug-and-play auto configuration feature. Simply wire the battery to any supported Mastervolt charger, connect the communication cable, and the battery automatically configures the charger to match its specifications. This seamless integration ensures a hassle-free charging experience without the need for additional configuration tools.

Features

  • Heavy duty and extreme performance
  • Sturdy and waterproof housing
  • Proprietary Battery Management System
  • Integrated communication (NMEA2000, CZone, MasterBus)
  • Self-learning balancing algorithm
  • Integrated thermal heat-pad
  • Fast charging
  • Longer battery cycle life
  • Integrated battery switch
  • Plug-and-play installation

(MV66011250)

General specifications  
Nominal battery voltage 12 V
Nominal battery capacity 100 Ah
Nominal battery energy capacity 1250 Wh
Cycle life 3500 cycles at 80 % DOD at 25 ?C, max. C/3 charge and C/2 discharge
Max. charge current 100 A
Recommended charge current ? 50 A
Max. continuous discharge current 200 A
Maximum continuous charge current 100 A
Peak discharge current 500 A (10 sec.)
Battery monitoring integrated
MasterBus communication yes
CZone / NMEA 2000 communication yes
Terminals M8
Mounting position upright (recommended) or either long side
Dimensions 330 x 173 x 210 mm
Product weight 15 kg
Shipping weight 17.2 kg
Compliance CE, E-Mark, UL1642 (cells only), FCC, RVIA compliant
Technical specifications  
Battery chemistry Lithium Iron Phosphate
Protection degree IP65
Parallel connection yes, unlimited
Series connection yes, up to 48 V
Protections over voltage, under voltage, over temperature
Safety relay integrated
Safety relay controls integrated
SKU MV66011250
Barcode # 66011250
Brand Mastervolt
Shipping Weight 15.0000kg

Manufacturer's warranty included

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