PRODUCT SERIES
ECHO-3 / ECHO-4
All-in-one solar system configurations with 3kWh or 4kWh energy storage.

2Configurations
3–4 kWhEnergy Range
12.8 VNominal Voltage Range
SERIES CONFIGURATIONS
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Compare models in this series and choose a configuration for your inquiry.
Scroll horizontally to compare all models. Highlighted rows have different specifications.
| Parameter | ![]() | ![]() |
|---|---|---|
| System Specitification | ||
| AC Input Frequency and Voltage | 45-65Hz; 90~280V±5V; L+N+PE | 45-65Hz; 90~280V±5V; L+N+PE |
| Nominal Output Power | 1500VA | 2000VA |
| AC Output Frequency and Voltage | 50-60Hz; L+N+PE; 220/230Vac | 50-60Hz; L+N+PE; 220/230Vac |
| Grid Type | Single-phase | Single-phase |
| Rated Battery Energy | 3.0kWh | 4.0kWh |
| Max. Charging Current | 140A | 150A |
| Battery Operating Voltage | 22.4-28 V | 22.4-28 V |
| Battery Type | LiFePO4 | LiFePO4 |
| Altitude | ≤2000m | ≤2000m |
| Protection Level | IP20 | IP20 |
| Installation | Wall-mounted Installation | Wall-mounted Installation |
| Warranty Period | Two years(0.5C charge/Discharge @25°C,80% DOD) | Two years(0.5C charge/Discharge @25°C,80% DOD) |
| Inverter Technical Specitification | ||
| Max. PV Input Power | 1200W | 1200W |
| Max. PV Input Current | 15A | 15A |
| Max. PV Charge Current | 100A | 100A |
| MPPT Voltage Range | 18-110VDC | 18-110VDC |
| No. of MPP Tracker | 1 | 1 |
| Battery Technical Specification | ||
| Nominal Capacity | 230Ah | 314Ah |
| Nominal Voltage | 12.8V | 12.8V |
| Recommend Charge/Discharge Current | 115A | 165A |
| Max. Continuous Charge/Discharge Current | 130A | 200A |
| Peak Charge/Discharge current(@10s) | 150A | 210A |
| DC Output Specitification | ||
| DC-5521 | 4*12V Total 100W | 4*12V Total 100W |
| USB Type-A | 4*5V 2A | 4*5V 2A |
| Other Specitification | ||
| Working Temperature Range(Charge) | 0 ~ +55°C | 0 ~ +55°C |
| Working Temperature Range(Discharge) | -10°C ~ +50°C | -10°C ~ +50°C |
| Storage Temperature Range(One Month) | -10°C ~ +45°C | -10°C ~ +45°C |
| Storage Temperature Range(Six Months) | -10°C ~ +35°C | -10°C ~ +35°C |
| Cycle Life(@25°C) | ≥8000 Cycles | ≥8000 Cycles |
| Display | LCD+LED | LCD+LED |
| Protection | Built-in smart BMS | Built-in smart BMS |
| Certification | UN38.3 EMC | UN38.3 EMC |
| Product Dimension | 500*400*180mm±5mm | 550*450*180mm±5mm |
| Package Dimension | 605*455*235mm±5mm | 605*505*235mm±5mm |
| Product Weight Approximate | 32.5kg±1kg | 40.5kg±1kg |
| Package Weight Approximate | 35.5kg±1kg | 43kg±1kg |
| Documents & Test Conditions | Datasheet ↗*Test conditions: 0.5C charge/discharge, @25°C, 80% DOD; product specifications are subject to change without prior notice. | Datasheet ↗*Test conditions: 0.5C charge/discharge, @25°C, 80% DOD; product specifications are subject to change without prior notice. |
Specifications and test conditions apply to the corresponding configuration. Refer to its datasheet for details.
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