Produktbeschreibung
High-performance LiFePO4 under-seat battery for mobile and stationary energy systems
The ULTIMATRON ULM-12-620 is a compact lithium iron phosphate battery with 12.8 V nominal voltage, 620 Ah capacity, and 7936 Wh energy. The flat under-seat housing allows for space-saving integration. The battery is suitable for motorhomes, campers, caravans, boats, yachts, commercial vehicles, as well as autonomous solar and off-grid systems.
The integrated Smart BMS monitors the battery cells and protects the system from overcharging, overvoltage, and overheating. Important battery data can be checked in real-time on a compatible smartphone or tablet via the integrated Bluetooth 4.0 connection.
Key benefits
- LiFePO4 technology with high stability and long service life
- > 6,000 cycles at 80% DOD according to manufacturer specifications
- Integrated Smart BMS for controlling, monitoring, and protecting the battery cells
- Bluetooth 4.0 monitoring via smartphone or tablet
- Low self-discharge of less than 3% per month
- No memory effect and suitable for regular deep discharges
- Robust metal housing with IP62 protection rating
- 5-year manufacturer warranty
Ideal for motorhomes, campers, boats, and off-grid applications
With 7936 Wh of storage capacity, the ULM-12-620 reliably powers lighting, cooling appliances, pumps, inverters, communication and navigation equipment, as well as other electrical consumers. The compact design is particularly attractive for applications where available installation space is limited.
Bluetooth and Smart BMS
The Bluetooth connection offers a transparent overview of important operating data. The integrated battery management system monitors the cells during charging and discharging and supports reliable operation of the energy storage unit.
Technical data
| Item number / Type | ULM-12-620 |
| Battery technology | LiFePO4 - Lithium Iron Phosphate |
| Nominal voltage | 12.8 V |
| Nominal capacity | 620 Ah |
| Energy | 7936 Wh |
| Recommended charging current | 100 A |
| Maximum charging current | 150 A |
| Recommended charging voltage | 14.6 V |
| Max. continuous discharge current | 250 A |
| Peak discharge current | 800 A ± 150 A |
| Cycle life | > 6,000 at 80% DOD |
| Self-discharge | < 3% per month |
| Bluetooth | Bluetooth 4.0 with smartphone app |
| Smart BMS | Yes |
| Heating function | No |
| Protection rating | IP62 |
| Terminal type | M8 |
| Housing material | Metal |
| Dimensions L × W × H | 440 × 375 × 318 mm |
| Weight | 61.65 kg |
| Interconnection | Series and parallel connection possible for 12 V, 24 V, 36 V, and 48 V applications. |
| Warranty | 5-year manufacturer warranty |
Note: For safe and long-lasting operation, a suitable LiFePO4 charger and the manufacturer's specifications for series and parallel connection must be observed.