Match the product to the battery system
Confirm the master and slave control-box roles, cell-monitoring count, contactor and current-sensor architecture, PCS or EMS communication, and project voltage range before ordering high-voltage BMS hardware.
1 / 6High Voltage BMS Control Kit
High Voltage Kit
BCU and BMU control hardware for high-voltage battery systems
Modular BMS control hardware for high-voltage energy storage systems. Select an individual 100A or 200A BCU master control box or BMU slave control box. The price applies only to the selected control box.
- Communication
- CAN ×2 / RS485 ×4 / isoSPI daisy-chain
- Product Type
- High-voltage BMS control hardware
- Order Scope
- One selected master or slave control box per ordered unit
- Battery Included
- No
- Master Control
- BCU-B3 — ISO 26262-oriented design, 1500V detection
Choose configuration
Selected configuration$1,020.00
Shipping is calculated by destination during checkout. PayPal verifies and captures the final amount securely.
Product details
Supply scope and specifications
Key features
- BCU-B3 master control with ISO 26262-oriented functional safety design and 1500V detection
- BMU-H5-16 slave control with ±5mV accuracy and 2A bidirectional active balancing
- SOC / SOH / SOP estimation based on the battery model
- 9 to 16 series cell voltage and 8-channel temperature collection per slave
- Remote OTA and IoT monitoring support depending on final architecture
- CAN / RS485 / isoSPI communication with compatible PCS and EMS equipment
- Supports LFP, NMC, LMO, and LTO battery system designs
Included
- The selected 100A or 200A BCU master control box or BMU slave control box
- Embedded control and communication hardware provided with the selected model
- Standard accessories and documentation listed in the model packing list
- Configuration guidance based on project information supplied by the customer
Not included
- Battery cells, battery modules, and complete battery packs
- Additional master or slave control boxes not selected in the order
- Battery rack, high-voltage cabling, contactors, PCS, EMS, and inverter equipment
- System engineering, onsite installation, and commissioning unless separately quoted
Product TypeHigh-voltage BMS control hardware
Order ScopeOne selected master or slave control box per ordered unit
Battery IncludedNo
Master ControlBCU-B3 — ISO 26262-oriented design, 1500V detection
Slave ControlBMU-H5-16 — 16-cell, 2A active balancing
Voltage Accuracy±5mV BMU / ≤1% BCU total voltage
Current Detection-300A ~ +300A, ≤1% accuracy
Insulation≥20MΩ, high-voltage interlock
CommunicationCAN ×2 / RS485 ×4 / isoSPI daisy-chain
Operating Temperature-25°C ~ +85°C
Detailed product information
Complete visual product guide
Review the full product illustrations, dimensions, component information, and application notes before selecting a configuration.
SELECTION HELP
Check the system requirements before ordering
HIGH-VOLTAGE BMS
BCU vs BMU architecture
Define master and slave roles, module count, cell monitoring, balancing, current, contactors, insulation, PCS, and EMS links.
Read guideCOMMUNICATION GUIDECAN vs RS485 for a BMS
Separate physical interface choice from inverter protocol and system compatibility requirements.
Read guideMODEL-SPECIFIC APPLICATION NOTES
High Voltage Kit selection context
High Voltage Kit should be compared as a specific JKESS battery and ESS hardware product, not only by a copied title or image. The selection should be based on the real battery system, installation space, communication needs, and official quotation or checkout configuration.Why this model matters
The high-voltage kit is a priority project product because BCU and BMU roles must be planned with pack voltage, cell count, current sensing, contactors, PCS, EMS, and insulation monitoring before quotation.
Application context
High Voltage Kit belongs to the JKESS battery and ESS hardware and is best reviewed for high-voltage battery racks that need separated BCU master and BMU slave control hardware.
Use the exact product page to confirm the selected configuration, accessories, and quotation scope for High Voltage Kit.
For communication planning, this page lists CAN ×2 / RS485 ×4 / isoSPI daisy-chain; protocol, pinout, cable, firmware, and inverter or service-tool settings still need confirmation.
Decision checks
- Confirm battery chemistry, cell count, and pack voltage before selecting the product.
- Confirm mounting position, cable exit, airflow, and service access in the final enclosure.
- For direct checkout, verify the selected configuration and destination shipping before payment.
- Use www.batteryboxkit.com and zhou@jkess.com to verify official source, quotation, and bulk purchasing details.
Model planning
Model fit and purchase planning
Use this summary to confirm whether High Voltage Kit fits the battery system before checkout, quotation, or installation.
- Primary use
- High-voltage BMS control architecture
- Communication
- CAN ×2 / RS485 ×4 / isoSPI daisy-chain
Pre-order checks
- High Voltage Kit should be checked against the real battery pack, load current, installation space, thermal conditions, and selected accessories before purchase.
- Confirm current rating and protection design from the final product page or written quotation before ordering.
- The listed communication options are CAN ×2 / RS485 ×4 / isoSPI daisy-chain; protocol, pinout, firmware, and inverter compatibility still need project-level confirmation.
- Review balancing requirements separately when the battery pack uses large-capacity cells or has known cell mismatch.
System fit checks
Compatibility, installation, and official purchase checks
Use these checks before selecting a configuration, requesting a quote, or installing the product in a battery system.
Confirm protocol and interface details
The listed communication options are CAN ×2 / RS485 ×4 / isoSPI daisy-chain. Confirm protocol, pinout, baud rate or CAN bitrate, firmware, and inverter compatibility before installation.
Plan wiring, mounting, and operating conditions
Plan the installation around -25°C ~ +85°C operating conditions. Use suitable fusing, cable size, torque, ventilation, insulation, and commissioning checks for the final battery system.
Verify the product and quote channel
Verify this product on https://www.batteryboxkit.com/shop/hv-control-kit, confirm the official domain is www.batteryboxkit.com, and use zhou@jkess.com for quotation checks before bulk payment or project procurement.
Buying notes
What to confirm before ordering
Practical points buyers raise before paying: where the product comes from, what documentation to check first, how it ships, and how the price is set.
Bought from the factory that builds it
This catalogue is operated by JKBMS Electronic Technology Co.,Ltd rather than a reseller, so model configuration, documentation, and warranty questions are answered by the manufacturer instead of being referred upstream.
Kit freight depends on destination
Battery enclosure kits ship free to the EU. Shipments to the US, Southeast Asia, Japan, Korea, and selected Middle East destinations carry a flat freight charge, and other destinations are quoted manually because of size and weight.
An enclosure kit is not a finished battery
A kit supplies the enclosure and assembly hardware. Cells, BMS, and any display are selected separately, so confirm cell dimensions and series count against the kit before ordering.
Priced per SKU, paid through PayPal
Each configuration is priced separately and the total is re-checked on the server at checkout, so the price shown for the selected SKU is the price charged. Larger quantities are quoted separately through a bulk enquiry.
Product FAQ
Official buying and compatibility notes
What is High Voltage Kit used for?
High Voltage Kit is listed for high voltage bms control kit. Modular BMS control hardware for high-voltage energy storage systems. Select an individual 100A or 200A BCU master control box or BMU slave control box. The price applies only to the selected control box.
Who makes High Voltage Kit, and who am I buying it from?
JKBMS and JKESS hardware is manufactured by JKBMS Electronic Technology Co.,Ltd. BatteryBoxKit is the stocking storefront operated by that company, so this listing ships from held stock. Quotations and order confirmations come from zhou@jkess.com.
How should I confirm compatibility before ordering High Voltage Kit?
Confirm communication CAN ×2 / RS485 ×4 / isoSPI daisy-chain against the battery pack, inverter, wiring, and project requirements before ordering.
What is included with High Voltage Kit?
The selected 100A or 200A BCU master control box or BMU slave control box; Embedded control and communication hardware provided with the selected model; Standard accessories and documentation listed in the model packing list. Not included: Battery cells, battery modules, and complete battery packs; Additional master or slave control boxes not selected in the order. The final selected configuration and written quotation remain the reference for supply scope.
How do payment, shipping, and returns work for High Voltage Kit?
Choose the configuration on the product page and review destination shipping during checkout. Battery cells, onsite installation, and external system equipment are not included unless explicitly listed. Return and shipping rules are published at https://www.batteryboxkit.com/company/policies.
Get in Touch
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LocationBuilding B4, Guangming, Shenzhen, China