After-Sales Service
JKBMS After-Sales Service Center – Technical Support, Downloads & Contact
Submit a support request, download product resources, or contact our team — all in one place.
🛠️ After-Sales Support Request
Experiencing an issue with your JKBMS product? Fill in the form below and our technical team will respond within 24 hours.
🔑 APP Default Passwords
📱 Bluetooth Connection Password:
1234
🔐 Authorization / Settings Password:
📖 Guide: How to Reset Your Password →
🔄 APP Password Resetting →
123456
📥 Download Center
Click a category to expand and view available files.
JKBMS Product Selection Guide
Smart BMS & Inverter BMS · PDF · Google Drive
JKBMS Smart BMS User Manual — JK-BXA8SXP
Active Balance · 0.6A-2A · 100A-300A · 8S · PDF · V19.3.1
JKBMS Inverter BMS Brief Instructions
PB Series · Quick Start · PDF
JKBMS B / BD Series BMS Brief Instructions
B Series · Quick Start · PDF
RS485 Communication Protocol
HCRPB Series · Modbus RTU · PDF
CAN Bus Protocol
HC / HCRPB Series · CAN 2.0 · PDF
JKBMS Smart BMS User Manual
B Series (Standard / HC / HCRPB) · PDF · v2.0
JKBMS Inverter BMS User Manual
PB Series · PDF · v1.5
JKBMS ESS Solution Guide
ESS Integration · PDF
UART / Bluetooth Protocol
All Series · PDF
Wiring Diagram — Smart BMS
B Series · PDF
Wiring Diagram — Inverter BMS
PB Series · PDF
JKBMS-PBXX-V19.31B
Inverter BMS PB Series · .rar
JKBMS-PBXX-V19.31
Inverter BMS PB Series · .rar
Smart BMS Firmware
B Series · .bin
JKBMS App — Google Play
Android · Official Store
JKBMS App — App Store
iOS · Official Store
JKBMS PC Monitor (Windows)
Windows · USB & RS485 · jk-bms-monitor.exe
Inverter BMS — MUST Setup
MUST Inverter · RS485 / CAN · MP4
Inverter BMS — GROWATT RS485 Setup
GROWATT Inverter · RS485 · MP4
Inverter BMS — GROWATT CAN Setup
GROWATT Inverter · CAN Bus · MP4
Inverter BMS — DEYE Setup
DEYE Inverter · RS485 / CAN · MP4
📞 Contact Us
Need to reach our team directly?
Technical Support
WhatsApp
💡 Preferred contact: Email (service@jkbms-ess.com) · WhatsApp (+86 13926917580) · Live Chat 💬
· For Live Chat: click the Chat button at the bottom-right corner of this page.
· Available 7×24 (replies may be delayed due to time zone differences)
· For Live Chat: click the Chat button at the bottom-right corner of this page.
· Available 7×24 (replies may be delayed due to time zone differences)
💼 Bulk order or quote? Contact our sales team directly.