Lithium storage system US2000C / US3000C
Solar Lithium storage unit 48V / 2.4 kWh (US2000C) / 3.5 kWh (US3000C)
The US2000C and US3000C are state-of-the-art lithium storage systems: With the highest level of safety and a long service life – even with regular deep discharge – they meet the high demands placed on solar storage systems. The fast charging and discharging properties typical of lithium batteries allow to store or release a large amount of energy in a short period of time. This predestines the US2000C and US3000C for use in solar storage solutions for private households.
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Characteristics
- Higher cycle stability than its predecessors with now over 6000 charge / discharge cycles
- Higher depth of discharge (DoD) up to 95% @ 25°C
- Design life up to 15 years
- Built-in soft start function to avoid power surges when the inverter starts up
- Automatic address setting when connected in multi-group mode
- Absolutely failsafe lithium technology – lithium iron phosphate / LiFePo4
- Very high storage capacity ratio – lightweight and compact design
- Horizontal or vertical setup, optionally also 19“-rack mounting
- High peak charge and discharge ratings of up to 4.3 kW per module can be achieved
- Integrated battery management system
- Compatible with Series AX solar inverters in the EFFEKTA range
- Modular system for individual scaling
- 7 years warranty
Specifications
| Model | US2000C | US3000C |
|---|---|---|
| Technology | Lithium iron phosphate (LiFePo4) | Lithium iron phosphate (LiFePo4) |
| Nominal voltage | 48V | 48V |
| Rated capacity | 50Ah / 2.4kWh | 74Ah / 3.55kWh |
| Usable capacity (95% DoD) | 47.5Ah / 2.28kWh | 70Ah / 3.37kWh |
| Discharge voltage range | 45.5 … 53.2V | 45.5 … 53.2V |
| Charging voltage range | 52.5 … 53.2V | 52.5 … 53.2V |
| Recommended charge / discharge current | 25A | 37A |
| Maximum charge / discharge current | 50A / Peak: 90A for 15s. | 74A / Peak: 90A for 15s. |
| Communication | RS485, CAN | RS485, CAN |
| Weight | 24kg | 32kg |
| Dimensions | 442 x 410 x 89mm | 442 x 420 x 132mm |
| Temperature range at charge | +0… +50°C | +0… +50°C |
| Temperature range during discharge | -10… 50°C | -10… 50°C |
| Design life | over 15 years @ 25°C | over 15 years @ 25°C |
| Cycle life | > 6000 @ 25°C | > 6000 @ 25°C |
| BMS / monitoring | Integrated battery management system in each module | Integrated battery management system in each module |
| Certification | TüV / CE / UN38.3 | TüV / CE / UN38.3 |