JK B2A8S30P 3S-8S Continuous Current 300A Smart Active Balance BMS

The JK-B2A8S30P is a high-performance Smart BMS engineered for 4S-8S LiFePO4 and Li-ion battery packs. It features an industry-leading 300A continuous discharge capacity and a powerful 2A active balancer. This BMS is the ideal solution for heavy-duty 12V or 24V applications, including large-scale RV power systems, off-grid solar storage, and marine electronics.

Drive Heavy Loads with the JK-B2A8S30P The JK-B2A8S30P is built for enthusiasts and professionals who need massive current delivery without compromising on safety. Designed to handle 300A continuously, it easily powers large 3000W-5000W inverters, air conditioning units, and heavy-duty appliances in mobile or stationary energy systems.

Key Performance Benefits:

• · Pro-Grade 2A Active Balancing: Most high-current systems suffer from cell drift. The built-in 2A active balancer fixes this by redistributing charge between cells in real-time, ensuring your entire pack stays balanced and healthy even under high-stress cycles.
• · Massive 300A Capacity: Rated for 300A continuous and up to 600A peak discharge, this BMS provides the overhead needed for high-surge starting currents and sustained power delivery.
• · Smart App Integration: Monitor your battery’s SOC, individual cell voltages, and temperature sensors via Bluetooth. The JK BMS App allows for precise parameter tuning to match your specific battery chemistry.
• · Multi-Point Safety Protection: Advanced hardware monitoring prevents overcharge, over-discharge, and short circuits, while integrated temperature probes guard against thermal issues.

Technical Specifications:

• · Battery Configuration: 4S to 8S (LiFePO4, Li-ion, LTO)
• · Continuous Current: 300A
• · Peak Discharge: 600A
• · Balancing Current: 0.1A – 2.0A (Active)
• · Connectivity: Integrated Bluetooth, RS485/CAN Support

Dimension and Details

application