JKBMS Battery Management Systems for ESS & Battery Projects

Inverter BMS, smart BMS and active balancers for energy storage and battery projects. Use the selector below to find the right board for your cells, strings and current.

Inverter BMSWholesale

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Functions

Greyed-out functions are not available for the selected battery settings. If no version has all the functions you need, we show the standard version so it can be customized.

Accessories (optional)

Added to the cart with the BMS you choose. Only accessories that fit each model are included; prices are shown in the results.

Current class is not a continuous rating. Confirm hardware revision, wiring and thermal limits before ordering.

Some versions support HC / HCRPB features. Other feature combinations require customization, please contact us: WhatsApp · service@jkbms-ess.com

For manuals of a specific model, please visit the Support Center: Download Center

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Which JKBMS series fits your system?

Home ESS · Inverter batteries

PB series

Made for solar inverter battery systems. Works with mainstream inverters, feature-rich and easy to use.

  • Home solar energy storage batteries
  • Hybrid and off-grid inverter systems
  • Parallel battery banks for more capacity
  • Inverter communication over CAN / RS485
PB series inverter BMS For home energy storage batteries connected to an inverter. PB displays & accessories TTL-P display and USB-RS485 cable for the PB series.

DIY energy storage · Electric vehicles

B / BD series

For DIY small energy storage batteries, electric vehicles and similar uses. Versions with CAN or RS485 can also talk to an inverter, with a simpler feature set than PB.

  • DIY small energy storage batteries
  • Electric vehicles, e-bikes and scooters
  • LiFePO4, Li-ion and LTO cells supported
  • Inverter link on CAN / RS485 versions
Standard BMS Bluetooth app and display port for DIY packs and EVs. HC series Adds CAN and heating; CAN connects to an inverter. HCRPB series Adds CAN, RS485, heating and parallel connection for larger DIY storage.

Popular inverter BMS

The JKBMS ESS Inverter BMS (JK-PB Series) is purpose-built for home energy storage inverter systems. Unlike standard Smart BMS units, the JK-PB series integrates directly with solar inverters via built-in communication protocols, enabling fully automated charge and discharge management as part of a complete home ESS setup.

Available in 100A, 150A, 200A, and 300A current ratings for 16S LiFePO4 battery configurations. Optional 7 inch and 4.3 inch LCD displays available separately.

After-Sales Support

We’re here to help! For product manuals, setup guides, and technical support, visit our support page.

Need quick assistance? Contact us directly on WhatsApp.

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  • US & EU local warehouses

    In-stock orders ship locally from our US and EU warehouses, delivered in about 3–5 days.

    Shop local stock

  • Worldwide fast shipping

    Fast priority shipping with a 99.8%+ delivery rate. Most major countries receive orders in about 7–10 business days after dispatch.

  • Technical support

    Talk to our team before you order to confirm the right model and wiring.

  • Manuals & firmware

    Download manuals and firmware for your exact model.

Support

JKBMS Technical Guides & Downloads

Find guides covering B/BD and PB display compatibility, PB V15/V19 hardware and firmware differences, interfaces and a documented PB parallel setup example. Check the guide for your exact board series and version before wiring or updating firmware.

Read Technical GuidesManuals & Technical Support

Real installations. Real customers.

Unedited photos sent in by JKBMS customers from their own builds.

Certificates

  • CE-EMC

    CE-EMC

    BMS boards · Compliance document

  • RoHS

    RoHS

    BMS boards · Compliance document

  • EMC test report

    EMC test report

    BMS boards · Test report

  • RoHS test report

    RoHS test report

    BMS boards · Test report

  • ElektroG / WEEE

    ElektroG / WEEE

    German registration document

  • EU trademark application

    EU trademark application

    JKBMS · Application receipt

Full certificates and test reports are available to business customers on request.