Humsienk 51.2V 400Ah Wall-mounted Bluetooth LiFePO4 Battery 20.48kWh
Energy powerhouse! Delivering massive 20.48kWh in one all-in-one unit, replacing 4× 48V 100Ah batteries to reduce wiring and cost. Built with BYD LiFePO4 cells for 6000+ cycles, featuring 200A output for 7–10kW systems, smart BMS with Bluetooth, wide-temp performance, inverter compatibility, and expandable up to 307.2kWh for home, solar, and commercial use.
Battery Size: L1251 × W741 × H200 mm | 186 kg
⚠️Battery in stock – ships immediately. Inverter on pre-order – ships separately once available.
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20.48kWh All-in-One Energy Storage：Replaces 4× standard 48V 100Ah batteries, simplifying installation while reducing wiring complexity and cost.
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200A High Output for 7–10kW Systems：Handles high surge loads and supports whole-home or commercial power demands with stable performance.
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Expandable Up to 307.2kWh Capacity：Supports up to 15 units for flexible energy scaling, ideal for growing home or business needs.
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6000+ Cycles with BYD Battery Cells：Delivers exceptional lifespan at 80% DoD, ensuring reliable long-term performance beyond industry standards.
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Advanced Safety & Smart BMS System：Features steel casing, 15mV active balancing, and Bluetooth/LCD monitoring for safe and intelligent operation.
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All-Weather Performance (-20°C to 60°C)：Operates reliably in extreme temperatures, ensuring stable energy supply year-round.
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Plug & Play with Major Inverters：Seamlessly integrates with Victron, Growatt, SRNE via CAN/RS485/RS232 for easy system setup.
| Mechanical | |
|---|---|
| Battery Cells | BYD |
| Shell Type | Metal |
| Terminal | M8 |
| Size / in (L×W×H) | 49.26 × 7.88 × 29.17 in |
| Weight | 410.06 lb ±5% |
| Electrical Characteristics | |
| Nominal Voltage | 51.2V |
| Nominal Capacity | 400Ah |
| Energy | 20.48kWh |
| Cycle Life | 6000 Cycles @ DoD80% |
| Months Self Discharge | ≤3% / Month |
| Efficiency Of Charge | 100% @0.2C |
| Efficiency Of Discharge | 96%–99% @0.5C |
| Standard Charge | |
| Charge Voltage | 56.8–58.4V |
| Charge Mode | CC / CV |
| Charge Recommended Current | ≤80A |
| Max. Continuous Charge Current | 200A |
| Standard Discharge | |
| Discharge Recommended Current | 200A |
| Max. Continuous Discharge Current | 200A |
| Discharge Cut-Off Voltage | 40V |
| Environmental | |
| Charge Temperature | 32°F–131°F / 0°C–55°C |
| Discharge Temperature | -4°F–140°F / -20°C–60°C |
| Storage Temperature | 32°F–113°F / 0°C–45°C |
| Ingress Protection Rating | IP20 |
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BYD Cells · 200A Smart BMS · 3A Active Balancing
Built with premium BYD LiFePO4 battery cells, a powerful 200A Smart BMS, and advanced 3A Active Balancing technology, the Humsienk 51.2V 400Ah LiFePO4 battery delivers exceptional safety, longer battery life, and stable performance. Designed for home energy storage systems, solar battery backup, and off-grid power applications, it ensures reliable energy storage for years of daily use.
3A Active Balancing · 8000+ Cycles · Enhanced Battery Health
The integrated 3A Active Balancing System continuously redistributes energy between battery cells to reduce voltage differences and maintain optimal performance. Combined with a 200A BMS and premium LiFePO4 cells, it helps maximize battery efficiency, extend service life beyond 8000 cycles, and improve long-term reliability for solar energy storage systems.
20.48kWh Energy Storage · Simplified Installation · One Complete System
Replace complex multi-battery configurations with a single 20.48kWh LiFePO4 battery solution. By reducing wiring, installation complexity, and maintenance requirements, this home energy storage battery provides a cleaner, safer, and more efficient way to power residential solar systems and backup power applications.
LCD Touchscreen · APP Monitoring · Smart Energy Management
Monitor battery status, voltage, current, State of Charge (SOC), and system performance in real time through the built-in LCD touchscreen and mobile APP. The intelligent monitoring system allows users to manage their solar battery storage system more efficiently while improving visibility and control of daily energy usage.
Expandable from 20.48kWh to 307.2kWh · Scalable Energy Storage
Start with 20.48kWh of energy storage and expand up to 307.2kWh as your energy demands grow. Ideal for residential solar systems, commercial energy storage, and large backup power installations, this scalable LiFePO4 battery solution offers long-term flexibility without replacing your existing system.
CAN · RS485 · RS232 · Compatible with Leading Inverter Brands
Supporting CAN, RS485, and RS232 communication protocols, this 51.2V 400Ah LiFePO4 battery integrates seamlessly with many mainstream inverter brands including Deye, Growatt, Victron, GoodWe, Solis, Sofar, SMA, SRNE, and more. This ensures smooth communication, reliable performance, and simplified system integration.
FAQs
A wall-mounted battery is a space-saving energy storage system designed to be installed on a wall, ideal for home backup power and residential solar setups.
We use top-tier Grade A LiFePO4 cells. According to our lab data, it can achieve 15,000+ cycles when operated at 60% Depth of Discharge (DOD).
Yes! It features both a built-in LCD touchscreen display and Bluetooth connectivity. You can easily monitor real-time data—such as State of Charge (SOC), voltage, temperature, and cycle counts—directly from the built-in screen or remotely via our dedicated mobile APP.
Absolutely. Designed for scalable energy solutions, you can connect up to 15 of these units in parallel. This allows you to expand your total energy storage capacity to an incredible 241.15kWh, perfect for large-scale residential, commercial, or off-grid setups.