Humsienk HAVEN 51.2V 400Ah Wall-mounted Bluetooth LiFePO4 Battery 20.48kWh

This premium battery bank is engineered with brand-new, ultra-reliable BYD LiFePO4 cells. It delivers an exceptional lifespan of 6,000+ deep cycles at 80% DOD (Depth of Discharge). This ensures top-tier, long-term performance, maximum thermal stability, and reliability that far exceeds industry standards.

Runtime depends on your energy consumption. With 20.48kWh of storage, the battery can support essential household loads such as lighting, refrigerators, internet equipment, TVs, computers, and other appliances for many hours. When paired with solar panels, it helps maximize self-consumption and reduce reliance on the grid.

Yes, it features full smart monitoring support! The unit comes equipped with a built-in LCD touch screen display and integrated Bluetooth connectivity. You can view live data directly on the physical screen or monitor it remotely using our dedicated HUMSIENK App. The app gives you real-time access to vital metrics.

This model is designed for standard 48V/51.2V systems and cannot be connected in series to increase voltage. However, it offers massive scalability in parallel! You can connect up to 15 units in parallel, allowing you to flexibly scale your system up to a whopping 307.2kWh total capacity—making it the ideal investment for growing residential energy storage or commercial power needs.

The battery supports CAN and RS485 communication protocols, making it compatible with many modern inverter systems, including Victron energy storage installations. Please refer to the installation guide or contact support for communication settings.

The built-in 200A Smart BMS continuously monitors battery status and provides multiple layers of protection to ensure safe and reliable operation.

It includes:

Over-Charge Protection – Prevents damage caused by excessive charging voltage.
Over-Discharge Protection – Protects battery cells from deep discharge and extends battery lifespan.
Over-Current Protection – Safeguards the system against excessive charging or discharging current.
Short-Circuit Protection – Automatically disconnects the battery in the event of a short circuit.
Low / High Temperature Cut-Off – Prevents charging or discharging outside the safe operating temperature range.
Over-Voltage Protection – Protects connected equipment and battery cells from abnormal voltage conditions.

These advanced safety features help maximize battery performance, improve system reliability, and ensure long-term protection for your home energy storage system.

The battery uses 3A Active Balancing Technology to transfer energy between cells and maintain balanced cell voltages. Compared with traditional passive balancing, active balancing improves charging efficiency, enhances performance consistency, and helps extend battery life.

For peak performance and extended cell longevity, the recommended charging voltage is 56.8V – 58.4V, with a recommended continuous charging current of ≤80A . The absolute maximum continuous charge and discharge current is 200A, safely managed by the heavy-duty built-in 200A BMS (Battery Management System), allowing your system to handle high-power surges with ease.

While it is a wall-mounted design intended to save floor space, it is incredibly user-friendly to position. The battery comes equipped with swivel wheels and a foot brake, allowing you to easily roll it into place before securing it. Note: Due to its large capacity and weight, we strongly recommend having two people or a certified electrician handle the final wall-mounting process.

For 48V battery systems, customers who complete warranty registration receive an additional 5 years of coverage, for a total warranty period of up to 10 years.