ESS-12 Datasheet
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CANBUS/RS485/RS232 protocol compatible
| Stored energy | 11.264kWh |
| Rated capacity | 220Ah |
| Nominal voltage | 51.2V |
| Volt range | 43.2V-57.6V |
| Charge time | Standard2.2h |
| Rapid1.5h | |
| Charge method CC-CV | Standard100A/56V |
| Rapid200A/56V | |
| Surge(10S) 210A(0.5S) | |
| Max discharge current | Continous 200A |
| Cycle life 0.5C, 23℃/73°F | 80% ＞7000 cycles |
| Operating temperature range | Charge 0°C~60°C/32°F~140°F |
| Discharge -20°C~60°C/-4°F~140°F | |
| Storage(1month) -20°C~45°C/-4°F~113°F | |
| Storage(6month) 0°C~35°C/32°F~95°F | |
| Communication port | RS232/RS485/CAN |
| Approx weight | 98kg /216lbs |
| Series & parallel connection | Max 16 batteriesin parallel connection.Series connection is not available. |
| Length | Width | Width |
| 446mm | 250mm | 752mm |
| 17.6in | 9.9in | 29.6in |
| Balance | Current | 30mA |
| Activate volt | ＞3.4V/ cell &cell Voltage difference＞30mV | |
| High temperature protection(MOSFET) | Protection | 115°C/239°F |
| Alarm | 90℃/194℉ | |
| Release | 85°C/185°F | |
| High temperature protection(cell) | Protection | 65°C/149°F(charge) |
| 70°C/158°F(discharge) | ||
| Alarm | 60°C/140°F(charge) | |
| 65°C/149°F(discharge) | ||
| Release | 55°C/131°F(charge) | |
| 60°C/140°F(discharge) | ||
| Low temperature protection(cell) | Protection | 0°C/32°F(charge) |
| -20°C/-4°F(discharge) | ||
| Alarm | 5°C/41°F(charge) | |
| -15°C/5°F(charge) | ||
| Release | 5°C/41°F(charge) | |
| -15°C/5°F(discharge) | ||
| Heating (option) | Activate | Temp≤5°C &Charge current≥4A |
| Release | Temp＞15°C &Charge current ＜4A | |
| Over-charge | Protection | 58.4V(3.65V/cell) |
| Alarm | 57.6V(3.6V/cell) | |
| Release | 54.08V(3.38V/cell) or SOC＜96% | |
| Over-discharge | Protection | 43.2V(2.7V/cell) |
| Alarm | 44.8V(2.8V/cell) | |
| Release | 47.2V(2.95V/cell) or charge the battery | |
| Primary over- current | Protection | 210A(1S) |
| Alarm | 205A | |
| Release | Automatic release after 60S | |
Secondary over-current | Protection | 260A(0.5S) |
| Release | Automatic release after 60S or charge current＞1A | |
| Short-circuit | Protection | 800A |
| Release | Remove load or charge the battery | |
| Lose Efficacy | Activate | cell Voltage difference＞1V (battery can't charge & discharge ) |
| BMS record | Capacity | ≥1000 records |
| Length | Width | Width |
| 446mm | 250mm | 752mm |
| 17.6in | 9.9in | 29.6in |
Supports remote battery status and power consumption checking via mobile phones and computers for convenient household energy management.
Real-time communication between BMS and inverter realizes dynamic voltage and current adjustment, eliminating overcharge and overheating risks.
Built-in heater activates automatically below 0℃ (charging current ≥5A), maintaining constant 20℃ working temperature for stable operation in severe winter.
