Mastervolt 66011250 MLI Ultra lithium battery 12/1250 - 1.25kwh
The Mastervolt MLI Ultra 12/1250 is a high-performance 12V lithium iron phosphate (LiFePO4) battery designed for demanding marine energy systems. With a capacity of 100 Ah (1.25 kWh), it provides reliable power for onboard electronics, inverters, lighting and other electrical equipment.
Its integrated Battery Management System (BMS), advanced cell balancing and communication with MasterBus, NMEA2000 and CZone enable seamless integration into modern marine electrical systems.
Ref Seashop
14662244
Manufacturer ref
66011250
EAN code manufacturer
816882022944
Special Price €1,638.09 Regular Price €1,724.30
Details
Key features
-
LiFePO4 lithium battery for marine power systems
-
Capacity: 100 Ah / 1250 Wh (1.25 kWh)
-
Nominal voltage: 12 V
-
Integrated Battery Management System (BMS)
-
Continuous discharge current: 200 A
-
Peak discharge current: 500 A (10 sec)
-
Fast charging up to 100 A
-
Self-learning cell balancing technology
-
Integrated heating pad for cold-weather charging
-
Communication via MasterBus, CZone and NMEA2000
-
Rugged waterproof housing IP65
-
Over 3500 cycles at 80% depth of discharge
Typical onboard applications
-
House battery banks
-
Marine inverter systems
-
Navigation and communication electronics
-
Off-grid and mobile power systems
-
RV and camper installations
More Information
| Battery terminal | M8 |
|---|---|
| Battery type | Lithium |
| Max. charge current | 100A |
| Max. outer dimensions LxWxD | 330 x 173 x 210 mm |
| Supplier ref | 14662244 |
| Manufacturer ref | 66011250 |
| EAN code manufacturer | 816882022944 |
| Brand | Mastervolt |
| Product weight (kg) | 15.0000 |
| Nominal battery voltage | 12V |
| Waterproof rating | IP65 |





