Self-developed 200A HV master BMS and active balance slave BMS — 4 to 16 slave battery boxes, 80–1000V, modular stacking.
JKESS delivers safe, intelligent, and scalable high-voltage BMS solutions.
Our HV BMS master and active balance slave are engineered in-house for maximum performance, safety, and compatibility. We sell complete BMS kits (batteries not included).
High-voltage box (HV-BC150-100A) with 80–1000V operation, 100A max current, CAN/RS485, and integrated protection (MCCB, contactors, pre-charge).
16S high-voltage slave with 2A active balancing current. Monitors 16 cells, 8 temperature sensors, ±0.005V precision. Built-in BMU-H5-16 controller.
Supports 4 to 16 slave battery boxes per master. Modular vertical stacking, intelligent air cooling, and WiFi/APP remote monitoring.
Complete BMS solution: 1 x 200A HV master BMS box + 4–16 x slave battery box kits (active balance).
Batteries not included. Designed for C&I integrators and system builders.
| 200A HV Master BMS Box (HV-BC150-100A) | |
|---|---|
| Operating Voltage | 80 – 1000 V |
| Max Current | 100 A |
| Dimensions (L×W×H) | 482 × 398 × 175 mm |
| Weight | 18.1 kg |
| Communication | CAN (2x, 250k/500k) / RS485 (2x, 9600/115200) / Daisy Chain |
| Monitoring | WiFi / APP (JKESS built-in) |
| Sampling (Voltage) | 1000V / ±0.5% FS |
| Sampling (Current) | 100A / ±0.5% FS |
| Insulation Resistance | 10 MΩ / 15% |
| Dry Nodes | 4 channels / 0.5A / 1A@32V |
| Protection | MCCB 125A/200A, DC contactors, pre-charge circuit, fuse 160A/250A |
| Certification | GB34131-2017 |
| Slave Battery Box Kit (16S HV, Active Balance) | |
|---|---|
| Cell Type (Optional) | LiFePo4 |
| Dimensions (L×W×H) | 480 × 741.5 × 264.5 mm |
| Weight | 28.55 ± 0.1 kg |
| Max Cell Sample | 16 |
| Max Temp Sample | 8 |
| Voltage Precision | 1–4.5V / ±0.005V |
| Temp Precision | -30~105°C / ±2°C |
| Active Balance Current | 2 A (max) |
| Cooling | Intelligent air cooling / controllable fan |
| Slave Control Unit | BMU-H5-16 (active balance) |
| Daisy-Chain | Yes (between boxes) |
| Quantity per Master | 4 – 16 boxes |
JKESS active balance slave BMS (BMU-H5-16) delivers 2A active balancing current, ensuring cell consistency and extending battery life. Combined with our 200A HV master BMS, the system achieves high precision sampling (voltage ±0.5% FS, current ±0.5% FS) and robust protection (overcurrent, insulation monitoring, pre-charge control).
Accurate cell monitoring for reliable state-of-charge (SOC) and state-of-health (SOH) estimation.
±2°C precision across -30~105°C range — critical for thermal management in stacked systems.
MCCB, DC contactors, pre-charge resistor, fuse, and insulation monitoring — all integrated in the HV master box.
JKESS HV BMS kits are optimized for Home energy storage across Europe and Southeast Asia.
Get a quote for JKESS HV BMS master + slave kits — 200A master, active balance slave, stackable up to 16 boxes. BMS kits only, batteries not included.
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