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 User Manual — JK-PBXA16S
PB Series · Protection Board · PDF · V19.03
JKBMS JK-B2A24S-30P User Manual — V19.0.2
B Series · 24S · 300A · PDF · V19.0.2
JKBMS Smart BMS User Manual — JK-B2AxxS-15P-20P
B Series · 15P-20P · PDF · V19.1.1
JKBMS Smart BMS User Manual — JK-B2A25S-RP
B Series · 25S · RP Version · PDF
JKBMS-ESS App Parameters Settings Manual
All Series · App Setup Guide · PDF
JKBMS Inverter BMS Brief Instructions
PB Series · Quick Start · PDF
JKBMS B / BD Series BMS Brief Instructions
B Series · Quick Start · PDF
JKBMS JK-BLMK-5A Parallel Module User Manual — V3.0
Parallel Module · Hard Parallel · PDF · V3.0
Heating Function Instructions
HC / HCRPB Series · Heating Module · PDF
RS485 Communication Protocol
HCRPB Series · Modbus RTU · PDF
CAN Bus Protocol
HC / HCRPB Series · CAN 2.0 · PDF
LCD 3.2" User Manual — V1.0
Smart BMS · 3.2 inch LCD · PDF · V1.0
LCD 4.3" TTL-P User Manual — V1.0
Smart BMS · 4.3 inch LCD · TTL · PDF · V1.0
LCD 4.3" for BD / B Series BMS
BD / B Series · 4.3 inch LCD · PDF
LCD 7.0" TTL-P User Manual — V1.0
Smart BMS · 7.0 inch LCD · TTL · PDF · V1.0
LCD 2.0" RS485 User Manual — V1.2
Smart BMS · 2.0 inch LCD · RS485 · PDF · V1.2
P-Link CR Interface Board — V1.0
PLINK Module · CR Interface · PDF · V1.0
JKBMS Smart BMS User Manual
B Series (Standard / HC / HCRPB) · PDF · v2.0
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
JKBMS PC Monitor User Manual
PC Monitor · Windows · PDF
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
ESS DIY Kit — White Vertical Roller Chassis
51.2V 314Ah · 白色立式滚轮电笱 · YouTube
ESS DIY Kit — Black 6U Stackable Chassis
51.2V 314Ah · 黑色 6U 堆叠式电笱 · YouTube
📞 Contact Us
Need to reach our team directly?
Technical Support
WhatsApp
💡 Preferred contact: Email (service@jkbms-ess.com) · WhatsApp (+1 818 938 3175) · 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.