Mastervolt
Mastervolt MLI Ultra Lithium Ion Battery (24V / 50Ah / 1250Wh)
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Mastervolt MLI Ultra 24/1250 is a heavy-duty 24V Lithium Ion battery built to deliver extreme performance under the harshest conditions, including high charge and discharge currents, wet environments, mechanical shock and vibration. It combines premium Lithium Iron Phosphate (LiFePO4) cells with a proprietary Mastervolt Battery Management System inside a sturdy, fully waterproof IP65 housing. A drop-in replacement for Group 31 and Group 49 batteries, it saves up to 70 per cent in space and weight while offering more than three times the lifespan of traditional batteries.
Integrated battery monitoring reports voltage, current, state of charge and time remaining, while NMEA 2000, CZone and MasterBus communication allow full system integration and automatic charger configuration. A self-learning balancing algorithm and integrated thermal heat-pad ensure efficient charging and full power even in freezing conditions. The integrated safety switch keeps supplying up to 200 A continuously.
PRODUCT DETAILS
- Heavy-duty Lithium Iron Phosphate (LiFePO4) cells with proprietary Mastervolt BMS
- 24V nominal, 50Ah capacity, 1250Wh nominal energy
- Drop-in replacement for Group 31 and Group 49 (85-90Ah) batteries
- More than three times the lifespan of traditional batteries; saves up to 70 per cent in space and weight
- Integrated battery monitoring: voltage, current, state of charge and time remaining
- Self-learning balancing algorithm and integrated thermal heat-pad for cold-weather charging
- Integrated safety switch supplies up to 200A continuously
- MasterBus, CZone and NMEA 2000 communication with auto charger configuration
- Fully waterproof IP65; UN 38.3, CE, E-Mark and FCC certified
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General
| Nominal battery voltage | 24 V |
| Nominal battery capacity | 50 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 | 50 A |
| Recommended charge current | ≤ 25 A |
| Max. continuous discharge current | 100 A |
| Maximum continuous charge current | 50 A |
| Peak discharge current | 250 A (10 sec.) |
| Battery monitoring | Integrated |
| MasterBus communication | Yes |
| CZone / NMEA 2000 communication | Yes |
| Terminals | M8 |
| Mounting position | Upright (recommended) or either long side |
| Compliance | CE, E-Mark, UL1642 (cells only), FCC, RVIA compliant |
Technical
| 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 |
Physical
| Max. outer dimensions (l x w x h, incl. terminals/grip handles) | 330 x 173 x 210 mm (13.0 x 6.8 x 8.3 inch) |
| Product weight | 15 kg (33.1 lb) |
| Shipping weight | 17.2 kg (37.9 lb) |
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- EU Declaration of Conformity MLI Ultra
- UK Declaration of Conformity MLI Ultra 1250
- Type approval certificate (E-mark) MLI Ultra 1250
- Type approval certificate RVIA
- MLI Ultra 12/1250 & 24/1250 Safety Data Sheet
- Quick start MLI Ultra 12-1250, 24-1250
- User manual MLI Ultra 1250
- 3D drawing MLI 1250 (zipped STEP-file)
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