Balcony ESS B2500 2.5KWH
Total System Feature
- PV Input MPPT Voltage Range: 48-300V
- Max Input Current: 40A
- MPPT Power: Max 1920W
- DC Output Voltage: 44-58.4V
- USB Output (Optional): 5V 3A & PD100W (Optional)
- Working Temperature: 0℃ ~ 45℃
- Discharge Temperature: -20℃ ~ 55℃
- Storage Temperature: -20℃ ~ 45℃
- Communication Mode: WiFi, Bluetooth
- IP Grade: IP65
- Noise: <45dB
- Humidity: 0-95% (no condensation)
- Max Altitude: <1500m
Balcony ESS B2500 2.5KWH
- Model: B2500
- Battery Type: LiFePO4
- Rated Capacity: 50Ah
- Rated Voltage: 51.2V
- Rated Energy: 2560Wh
- Cycle Life: >6000 times (at 0.2C, 80% DOD)
- Battery Dimension (L×W×H) In Millimeter: 650×180×360 mm
- Net Weight (Approx): Approximately 38 kg (Subject to actual measurement)
- Single Cell Overcharge Protection: 3.75±0.05V
- Single Cell Overdischarge Protection: 2.5±0.05V
- Overtemperature Protection: 60℃
- Low Temperature Charging Protection: -3℃
- PV Input MPPT Voltage Range: 48-300V
- Max Input Current: 40A
- MPPT Power: Max 1920W
- DC Output Voltage: 44-58.4V
- USB Output (Optional): 5V 3A & PD100W (Optional)
- Working Temperature: 0℃ ~ 45℃
- Discharge Temperature: -20℃ ~ 55℃
- Storage Temperature: -20℃ ~ 45℃
- Communication Mode: WiFi, Bluetooth
- IP Grade: IP65
- Noise: <45dB
- Humidity: 0-95% (no condensation)
- Max Altitude: <1500m
- Compact design for balcony or small spaces
- Plug & Play installation, ready to use
- Safe and long-lasting LiFePO4 battery
- 2–10 kWh capacity for typical household needs
- Peak power output supports everyday loads
- IP55/IP65 rated for outdoor or semi-outdoor use
- High round-trip efficiency (96–99%)
- Smart BMS protects against overcharge, over-discharge, short-circuit, and temperature extremes


Products Details
Safe LiFePO4 Chemistry
Stable, non-flammable lithium iron phosphate ensures safety in industrial environments.
Broad Inverter Compatibility
Seamlessly integrates with major inverter brands for reliable solar energy storage.
APP Monitor
Remote OTA upgrades, WiFi and Bluetooth functionality, and app-based remote monitoring for easy system management.
Precise SOC Display
Accurate state‑of‑charge data shown after the first full battery charge.
10 Years Usage Life
Delivers 6,000+ cycles and charges in 0.2C with 99% efficiency.
Smart Battery Management
Built-in BMS offers real-time monitoring and multi-level protection.
Space & Maintenance Saving
Smaller battery size, no watering, no acid—zero maintenance required.
Clean & Durable Design
No gas emissions or spills, IP65-rated for harsh work environments.
Balcony ESS – Smart, Compact Home Energy Storage

Our Balcony ESS is designed for modern homes, providing a safe, reliable, and convenient energy storage solution in a sleek, space-saving package. Perfect for balconies, patios, or any limited space, it allows homeowners to efficiently store solar energy and power daily household loads with ease. With a high-efficiency LiFePO4 battery and intelligent Battery Management System (BMS), the Balcony ESS ensures long-lasting performance, optimal safety, and consistent energy output. Its plug-and-play design makes installation simple, while IP55/IP65-rated protection allows it to withstand outdoor conditions. Whether you want to reduce electricity costs, increase self-consumption of solar power, or ensure backup energy during outages, the Balcony ESS provides a versatile, eco-friendly, and hassle-free solution for your home.
- Advanced internal design.
- Life design:10 years
- Warranty: 5 years
- Cycle life:6000+ times at 80% DOD
- Plug and Play for easy operation
- Continuous Charging/ Discharging current:100A
- 44~58.4V or 5V 3A & PD100w (optional)
- RS485/CAN/232 communication
- Built-In Safety – Smart BMS with Breaker On/Off Switch for Shipping & Installation
- Non-Toxic & Non-Hazardous Cobalt-Free LFP Chemistry
Balcony ESS VS Wall ESS
Feature | Balcony ESS | Wall-Mounted ESS |
---|---|---|
Installation Location | Balcony, patio, small spaces | Wall-mounted, indoor or outdoor |
Capacity | 2–10 kWh | 10 kWh and above, expandable |
Power Output | Moderate, suitable for daily household loads | Medium to high, supports full-house loads |
Battery Type | LiFePO4 | LiFePO4 |
Protection Rating | IP55/IP65, suitable for semi-outdoor use | Varies by model, often IP20 indoor / IP65 outdoor |
Installation | Plug & Play, easy setup | Professional or DIY installation, may require more space |
Expandability | Limited | High, supports multiple units in parallel |
Use Case | Small homes, solar self-consumption, backup for essential loads | Larger homes, full-house backup, high-capacity solar storage |
Smart All In One ESS Battery Monitor App
Real-time monitoring of battery voltage, current, and temperature. Enables remote diagnostics and alerts to ensure safe, stable operation and improve maintenance efficiency.
- Real-time battery voltage, current, and temperature monitoring
- Remote fault diagnosis and alert notifications
- Historical data logging and trend analysis
- Multi-device and multi-user management
- Supports CAN, RS485, and Modbus communication protocols
- Intelligent battery status evaluation and lifespan prediction
- User role management and security
- Remote firmware updates and maintenance support

Much better than lead-acid batteries!
Experience longer driving range, quicker recharges, and lightweight power with zero maintenance—engineered for superior performance and reliability in every ride.
- Longer lifespan, reducing replacement frequency
- Faster charging times for less downtime
- Lightweight design improves vehicle efficiency
- Maintenance-free, no need for watering or equalizing
- Higher energy density for extended driving range
- More environmentally friendly and safer chemistry
- Consistent performance in a wide temperature range
Compatible with the mainstream inverters
SMA, Victron Energy, GoodWe, Solis Inverters, Schneider Electric, Deye, Growatt, IMEON Energy, Studer, Selectronic, Voltronic Power, Sofar Solar, Sermatec, Zucchetti Centro Sistemi, Redback Technologies, Alpha ESS, Sungrow, LUX PowerTek, Morningstar, Delios, Ingeteam, MLT Power, Steca (A KATEK Brand), SAJ, SolarMax, Axioma Energy, Phocos, Western Co., Effekta, Kehua Tech, INVT, TBB, MUST, Moixa, Megarevo, AiSWEI, FSP, LIVOLTEK, SenerQy, SolaX Power, Opti-Solar Inverter Power, Sorotec, GMDE
