Baterie MLI Ultra Lithium 24/1250 - 1,25 kWh

The Mastervolt MLI Ultra 24/1250 battery has a nominal voltage of 24 V and a nominal capacity of 50 Ah. Its nominal energy is 1250 Wh (1.25 kWh).

The MLI Ultra 24/1250 battery offers over 3,500 cycles at a depth of discharge (DoD) of 80% and at an ambient temperature of 25°C.

Yes, the MLI Ultra 24/1250 battery is designed for extreme performance even in the harshest conditions, such as high charge/discharge currents, humid environments, mechanical shocks, or vibrations. It is fully waterproof with an IP65 protection rating.

The MLI Ultra 24/1250 battery uses Lithium Iron Phosphate (LiFePO4) technology, known for its robustness and safety.

The Ultra LiFePO4 battery offers more than three times the lifespan of traditional batteries and allows up to 70% space and weight savings compared to lead-acid batteries. It also supports high charge/discharge rates.

Yes, this battery is equipped with an integrated thermal heating pad and sophisticated low-temperature control. If the cell temperature drops below 0°C, the system uses the connected charger to power the heating pad and maintain the cell temperature above freezing, ensuring optimal charging even in cold weather. Charging at temperatures below -5°C may result in no charging current.

The recommended charging current for the MLI Ultra 24/1250 battery is ≤ 25 A (0.5 C). This battery is designed for fast charging, capable of reaching a full charge in 60 minutes.

Yes, the battery integrates a proprietary and sophisticated Battery Management System (BMS). This BMS ensures optimal use of each LiFePO4 cell, includes a proactive auto-balancing algorithm, and provides precise monitoring of key parameters. It also features an integrated battery cut-off for safety.

The Mastervolt MLI Ultra 24/1250 battery supports MasterBus, CZone, and NMEA2000 communication, enabling full system integration.

Yes, this battery can be connected in parallel (unlimited connections) and in series up to 48 V.

For a lithium-ion compatible charger, the recommended charging settings for the MLI Ultra 24/1250 battery are a bulk/absorption voltage of 28.5 V and a float voltage of 27 V.

The battery can be mounted vertically (recommended) or on any side along its length. Mounting clamps are provided for fixed installations. It is crucial to ensure the charger is lithium-ion compatible and to follow the quick installation manual instructions for secure connections, including the use of an isolated fuse holder directly on the battery terminal.

For the MLI Ultra 24/1250 battery, a 100 A fuse (IR 5 kA) is recommended. The recommended cable diameter is 35 mm² [AWG 2].

The battery is equipped with an integrated safety switch. To turn it off, press the button for 1 second. To turn it on, press the button for 5 seconds. A green LED (LED C) indicates the battery switch status.

The battery dimensions (including terminals and handles) are 330 x 173 x 210 mm (LxWxH). Its weight is 15 kg.

Yes, the battery is certified UN 38.3, CE, E-Mark, and FCC. It also complies with UL1973 and RVIA standards and is listed as TEI. DNV-GL certification was planned for late 2021.

Yes, the MLI Ultra 24/1250 is a direct replacement for Group 31 and Group 49 batteries, which typically have a capacity of 85-90 Ah.