JKBMS Active Balancer JK-DZ11B2A24S — 2A 2~24S RS485 Battery Equalizer with Cascade

JKBMS JK-DZ11B2A24S — 2A Active Battery Balancer for 2~24S with Standard RS485 & Cascade

The JK-DZ11B2A24S is the RS485-standard flagship of the JKBMS 2A active balancer lineup, purpose-built for large-format 2 to 24 series battery systems. With RS485 communication built in as standard, it integrates seamlessly with inverters, BMS controllers, SCADA systems, and energy management platforms — right out of the box, no optional add-ons required.

Need to go beyond 24S? The JK-DZ11B2A24S supports cascade installation, allowing multiple units to be daisy-chained for systems exceeding 24 cells. Combined with standard temperature monitoring and a constant 2A ultracapacitor balancing current, this is the go-to balancer for serious residential and commercial ESS deployments.

Key Features

• RS485 communication — standard built-in, no extra cost or configuration
• Cascade capable — expand beyond 24S by linking multiple units
• Standard temperature sensor input — included as standard
• 2A constant active balancing current — independent of cell voltage delta
• Supports 2~24S configurations — LiFePO4, Li-ion, LiPo, LTO, lead-acid
• High-precision voltage monitoring — ±3mV accuracy per cell
• Bluetooth connectivity — monitor and configure via mobile app
• Optional CAN communication (select at order, replaces RS485)
• LED Bluetooth status indicator
• Dimensions: 157.6 × 99 × 18.5 mm | Weight: 360g

Technical Specifications

• Cell count: 2S ~ 24S
• Balancing current: 2A (constant)
• Cell voltage range: 1V ~ 5V
• Voltage accuracy: ±3mV
• External power supply: DC 20~100V (via V+ / V− terminals)
• RS485: Standard built-in
• Temperature sensor: Standard built-in
• Cascade: Supported
• Dimensions: 157.6 × 99 × 18.5 mm
• Weight: 360g

Interface

• P1 — Balance & cell voltage connector: B0~B24 cell taps + V+/V− power
• P2 — Temperature sensor input (standard)
• P3 — RS485 communication port (standard) / optional CAN
• Cascade port — for multi-unit daisy-chain beyond 24S
• D1 — LED Bluetooth status indicator

Typical Applications

• Large residential energy storage systems (ESS) — 48V, 72V, 96V+
• Commercial and industrial battery systems with RS485 integration
• Solar power stations requiring SCADA or BMS communication
• High-voltage backup power systems
• Multi-unit cascade installations beyond 24S

Wiring Notes

• Verify all balance wire connections before powering on
• RS485 A/B terminals connect directly to inverter or BMS RS485 port
• For cascade: connect cascade port of unit 1 to input of unit 2
• No power-on switch — starts balancing automatically upon connection

📱 Bluetooth App: Available for iOS and Android — monitor cell voltages, balancing status, and configure parameters wirelessly.

⚠️ Shipping Note: Default ships from China. US warehouse stock available upon request — US inventory levels may vary and cannot be guaranteed. Please contact us before ordering if US local shipping is required. WhatsApp: +1 818 938 3175

Need help? Contact us via WhatsApp: +1 818 938 3175 | Email: service@jkbms-ess.com