Dyness B3 48V 3.6kWh LiFePO4 Lithium Battery

Product description

The Dyness B3 48V 3.6kWh LiFePO4 Lithium Battery is a low-voltage LFP storage module that combines safety, efficiency, and ease of integration in a 19” rack format. With 3.6 kWh per unit, BMS with CAN/RS485 communications, and native support for 48 V inverters, it is ideal for increasing autonomy in self-consumption, providing stable backup, and scaling capacity modularly without complications.

Main features

• Safe and stable LiFePO₄ (LFP) chemistry, with low internal resistance and high efficiency.
• Capacity per module: 3.6 kWh · nominal voltage 51.2 V (LV 48 V system) · ≈70 Ah.
• Integrated BMS with OVP/UVP, OCP, OTP/UTP protections and cell balancing.
• CAN/RS485 communication with Dyness profile for SOC/SOH reading in the inverter.
• 19” rack format (~3U) for quick installation in cabinet, wall, or base.
• Extended service life: ≥6,000 cycles @80% DoD (typical residential and light C&I use).

Advantages or benefits

• Expandable autonomy: add kWh by connecting modules in parallel with coordinated BMS management.
• Simple integration: Dyness battery profiles available in major 48 V inverters.
• Efficient operation: delivers stable direct current with minimal voltage drop.
• Enhanced safety: LFP chemistry and electronic protections safeguard the installation.
• Optimized total cost: long cycle life and virtually zero maintenance.

Purpose or applications

Designed for residential self-consumption with storage, small businesses, telecom, and 48 V backup/UPS systems. It is also perfect for expanding existing banks when more capacity is needed while maintaining native communication between the BMS and the inverter.

Technical specifications

Compatibilities

Communicates via BMS with 48 V inverters that offer the Dyness profile on CAN/RS485, such as Deye SUN LP1/LP3 LV series, SolaX X1/X3 Hybrid LV, Solis RHI 48 V, Growatt SPH/SPA/SPF 48 V, GoodWe EM/ES 48 V, and Victron via GX device over CAN bus. Not compatible with high voltage (HV) ecosystems such as Tower/PowerCube/PowerDepot H.

For optimal performance, size the cable section aiming for ≤1–2% voltage drop, protect each battery and the bank with a DC fuse/MCB and accessible isolator, make star power connections on DC busbars, and use shielded data cable with screen grounding at a single end. Always select the “Dyness” profile on the inverter and check firmware and SOC reading before commissioning.

In summary, the Dyness B3 48V 3.6kWh LiFePO4 Lithium Battery combines LFP safety, intelligent management, and broad compatibility to increase autonomy, optimize space, and improve the overall efficiency of your energy system.