Ultra-High Capacity 18.2kWh Server Rack Battery with JK Active Balancing BMS

Powered by Grade-A 356Ah LiFePO4 cells and integrated with a JK Smart BMS (2A Active Balancer), the GP-SR1-18K-JK offers 18.2 kWh usable energy in a single server rack module, maximizing space efficiency and energy independence.

18.2 kWh Single-Unit Powerhouse: Massive Energy, Less Footprint

Replacing multiple standard 5kWh modules with a single 18.2kWh unit eliminates complex wiring, multi-box communication bottlenecks, and installation hassle.

• 356Ah High Energy Cells: Deliver 18.2kWh usable energy in a standard rack-ready enclosure.

• Streamlined Cable Management: Reduces external busbar connections and point-of-failure risks.

• Full House Backup Solution: Easily supports high-draw household loads with lower system footprint.

JK Smart BMS with Built-in 2A Active Balancer

Equipped with a dedicated JK Smart BMS featuring real-time 2A active balancing, GP-SR1-18K-JK continuously equalizes cell voltages during both charge and discharge cycles, preventing capacity loss over time.

• 2A Active Balancing: Transfers energy from higher-voltage cells to lower ones, outperforming passive 50mA balancers.

• Bluetooth Smart App: Monitor cell voltages, SOC, temperatures, and balance status directly on iOS & Android.

• Complete Multi-Protection: Over-charge, over-discharge, short-circuit, over-current, and multi-point temperature protection.

Grade-A LiFePO4 Chemistry & 8,000+ Cycles Lifespan

Built with top-grade prismatic LiFePO4 cells, the battery ensures exceptional thermal stability, safety, and long cycle life for sustainable green power storage.

• 8,000+ Cycles @ 80% DoD: Built to power your home or off-grid setup for 15+ years.

• Low Internal Resistance: High round-trip efficiency (>97%) minimizes energy waste during daily cycling.

• Safe Cobalt-Free Technology: No thermal runaway risk for complete peace of mind.

Broad Inverter Compatibility & Parallel Scalability

Supports multiple communication protocols (CAN, RS485, RS232) for plug-and-play integration with world-leading inverter brands.

• Inverter Protocol Matching: Native support for Victron, Deye, Growatt, Sol-Ark, Luxpower, GoodWe, Schneider, and Megarevo.

• Multi-Unit Parallel Scaling: Connect multiple modules in parallel to expand system capacity into 50kWh+ or 100kWh+ banks.

• Standard Rack-Mount Chassis: Heavy-duty industrial design suitable for standard server rack cabinets.

Technical Specifications

Upgrade Your Solar Storage to 18.2kWh Single-Module Density

Maximize your backup capacity with Grade-A 356Ah cells and precise JK 2A active balancing. Contact Gobel Power today for shipping quotes and system compatibility checks.