Relay BMS

The JKBMS Relay BMS Series is engineered for large-capacity lithium battery packs that demand reliable external relay control. Designed for 3S to 25S configurations, these relay-type BMS units deliver precise charge, discharge, and pre-charge relay switching (12V drive), combined with 2A active cell balancing via supercapacitor energy transfer technology.

Built for professionals and system integrators, the Relay BMS series supports all mainstream lithium chemistries — LiFePO4, Li-ion (NMC), and LTO — and features built-in Bluetooth for real-time monitoring via the JKBMS App, with optional RS485 and CAN interfaces for industrial integration.

  • ⚡ Relay-type output: charge / discharge / pre-charge control (12V drive)
  • 🔋 Supports LiFePO4, Li-ion (NMC), LTO battery chemistries
  • ⚖️ 2A active balancing — supercapacitor-based energy transfer
  • 📡 Bluetooth built-in + optional RS485 & CAN interfaces
  • 🌡️ 3× NTC temperature probes + heating control support
  • 🔧 Configurable via JKBMS App (Android & iOS)

Ideal for solar ESS, industrial backup power, electric vehicles, forklifts, and high-capacity DIY battery packs.