Elecway Balcony Micro Energy Storage System
ELECWAY S3-20 Battery 2.01 kWh
CAPACITY
- 2.01 kWh
EXPANDABLE
- Up to 10 kWh
BATTERY TYPE
- LiFePO4 (LFP)
PROTECTION RATING
- IP65
ELECWAY
The ELECWAY S3-20 balcony storage system is a compact and high-performance battery storage solution for balcony power plants and small photovoltaic systems. Thanks to modern LiFePO4-technology, it offers high safety, a long service life, and a reliable energy supply.
With a base capacity of 2.01 kWh, the system can be flexibly expanded up to 10 kWh. The high PV input power of up to 2,400 W enables optimal use of solar energy and maximizes self-consumption. Two PV inputs with a 99.9% efficiency rating (MPPT) ensure particularly efficient use of available solar energy. Thanks to its IP IP65, the storage unit is suitable for both indoor and protected outdoor use.
PRODUCT HIGHLIGHTS
The S3-20 impresses with its compact design, high performance, and flexible scalability. The system can be expanded from 2.01 kWh up to 10 kWh and is ideal for balcony power plants, patios, and small photovoltaic systems.
With its IP65-protection rating, the storage unit is reliably protected against dust and water jets. The integrated Smart App allows you to monitor energy generation, battery status, and consumption in real time. The manufacturer specifies 6,000 charge cycles and a design life of up to 15 years, and relies on durable, cobalt-free LiFePO4-cells for high operational reliability.
SPECIAL FEATURES
COMPACT DESIGN
The S3-20 stands out for its space-saving design, with a volume reduced by over 40% while offering significantly increased energy density.
HIGH SAFETY
The cobalt-free LiFePO4-battery technology ensures maximum safety, high thermal stability, and a long service life. The integrated battery management system (BMS) monitors charging and discharging processes and supports safe operation of the storage system.
FLEXIBLY EXPANDABLE
The storage capacity can be expanded from 2.01 kWh to up to 10 kWh and scales flexibly with energy demand.
SMART ENERGY MANAGEMENT
The app allows you to monitor and control energy generation, storage status, and consumption in real time. Integrated Wi-Fi, Bluetooth, and RS485-communication enable convenient setup and reliable system monitoring.
Technical Specifications
| Specifications | ELECWAY S3-20 |
|---|---|
| Capacity | 2.01 kWh |
| Expandable capacity | Up to 10 kWh |
| Battery Type | LiFePO4 (LFP) |
| Nominal voltage | 51.2 V |
| Operating voltage range | 43.2 – 57.6 V |
| Recommended module power | 300–600+ W |
| PV input power | Max. 2,400 W |
| Number of PV inputs | 2 |
| MPPT-Voltage range | 20–54 V |
| Start voltage | 15 V |
| Max. input voltage | 60 V |
| Max. input current | 32 A |
| Max. short-circuit current | 40 A |
| Max. output power | 1,200 W |
| Rated discharge power | 800 W |
| Max. discharge current | 30 A |
| MPPT-efficiency | 99.9% |
| Battery efficiency (charging/discharging) | 94% |
| Communication | Wi-Fi (Bluetooth) + RS485 |
| Operating temperature | -20°C to +55°C |
| Protection Class | IP65 |
| Cooling | Natural cooling |
| Max. operating altitude | 2,000 m |
| Dimensions (L × W × H) | 350 × 174 × 225 mm |
| Weight | 20 kg |
| Certifications | CE, WEEE, UN38.3, RoHS, REACH, IEC62619 |
scope of delivery
- 1× ELECWAY S3-20 Battery 2.01 kWh
- Integrated Battery Management System (BMS)
- Integrated Wi-Fi/Bluetooth and RS485-communication
- User Manual
Technical Informations
Disposal of waste electrical and electronic equipment
Electrical appliances do not belong in household waste. You can return old appliances free of charge to municipal collection points or register them with us for take-back. The crossed-out wheelie bin means the appliance must be collected separately.
Returning batteries and rechargeable batteries
Batteries and rechargeable batteries do not belong in household waste. You are legally obliged to return used batteries — free of charge to us, to retailers or to municipal collection points. The crossed-out wheelie bin stands for separate collection; Pb means lead, Cd cadmium, Hg mercury.
Note: This product contains lithium batteries. Please follow the special instructions for safe handling and disposal — do not open, do not short-circuit, tape over the terminals before returning.