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JIKONG BD6A20S20P Smart BMS
Headline Options
Option 1 (Feature Focus): JIKONG BD6A20S20P 200A Smart BMS – The Ultimate Active Balancer for Large DIY Battery Packs
Option 2 (Benefit Focus): Maximize Your Battery Life: 200A Continuous Current with 0.6A Active Balancing (Supports 7S-20S LiFePO4/Li-ion/LTO)
Option 3 (Short & Punchy): JK Smart BMS 200A: Precision Monitoring, Active Balancing, and Bluetooth Control
Product Description
Unlock the Full Potential of Your Energy Storage System
The JIKONG BD6A20S20P is not just a Battery Management System; it is the intelligent guardian for your high-capacity battery bank. Designed for DIY enthusiasts, solar power users, and EV builders, this Smart BMS ensures your lithium battery pack operates at peak efficiency, safety, and longevity .
Unlike traditional passive BMS boards that waste energy as heat, the BD6A20S20P utilizes active balancing technology. This means it shuttles energy from high-voltage cells to low-voltage cells during use, significantly improving your overall usable capacity and extending the cycle life of your investment .
Key Selling Points
· High Current Capability: Handle heavy loads with ease thanks to a 200A continuous charge and discharge current, capable of peaking at 350A for demanding applications .
· Smart Active Balancing: Features a powerful 0.6A active balancing current to keep all your cells perfectly matched in real-time, ensuring maximum range and preventing premature failure .
· Full Smart Monitoring: Built-in Bluetooth allows you to connect to the free "JIKONG SMART BMS" app (iOS/Android). View individual cell voltages, temperature, state of charge, and adjust parameters right from your phone .
· Multi-Chemistry & Voltage Support: Whether you are running LiFePO₄ (3.2V), standard Li-ion (3.7V), or LTO batteries, this BMS adapts. It supports configurations from 7S to 20S, covering voltages from 24V up to 72V systems .
· Comprehensive Protections: Safety first. Your battery is protected against overcharge, over-discharge, overcurrent, short circuits, and extreme temperatures .
· Industrial Connectivity: Comes standard with RS485 communication and optional CAN bus support, making it perfect for integration with popular inverters (like Victron) and PC-based monitoring systems .
· Cold Weather Ready: Includes a heating function trigger, allowing the BMS to enable a heating pad so you can safely charge your batteries in freezing conditions .
Perfect For:
· DIY Solar Power Walls & Off-Grid Systems
· Electric Scooters, Bikes, and Small EV Conversions
· Marine and RV House Battery Banks
· Backup Power (UPS) Solutions 
In the Box:
· 1x JK-BD6A20S20P BMS Board
· 1x NTC Temperature Sensor (40cm)
· 1x Set of Balancing Wires with Connector (75cm)
· 1x Heating Cable / ON/OFF Switch 

Technical Specifications: JIKONG BD6A20S20P
Model Number: JK-BD6A20S20P
Brand: JIKONG / JKBMS
General Electrical Data
Parameter Specification Notes
Continuous Charge / Discharge Current 200 A 
Peak Discharge Current 350 A 
Battery Configuration (Series) 7S ~ 20S 
Supported Chemistries LiFePO₄, Li-ion, LTO 
Connection Type Common Port 
MOSFET Resistance 1 mΩ Main circuit 
Balancing & Accuracy
Parameter Specification Notes
Balancer Type Active Balancer 
Balance Current 0.6 A 
Voltage Measurement Accuracy ±3 mV High precision data collection 
Protection Features
Parameter Specification / Range
Overcharge Protection 1.2V ~ 4.35V (Adjustable per cell)
Overcharge Release 1.2V ~ 4.55V (Adjustable)
Over-discharge Protection 1.2V ~ 4.35V (Adjustable per cell)
Over-discharge Release 1.2V ~ 4.35V (Adjustable)
Overcurrent Protection 10A ~ 200A (Adjustable)
Overcurrent Delay 2s ~ 120s (Adjustable)
Short Circuit Protection Yes
Temperature Protection Yes (via 2x NTC Sensors)
Communications & Interface
Feature Specification
Wireless Built-in Bluetooth (App for Android & iOS)
Wired RS485 (Standard)
Optional Protocols CAN Bus, UART, GPS
External Display Supports optional JIKONG LCD screen
Default App Password 1234 (User) / 123456 (Settings)
Physical & Environmental
Parameter Specification
Dimensions (L x W x H) 162 mm x 102 mm x 20 mm
Weight ~0.59 kg
Operating Temperature -30°C ~ 70°C
Heating Function Yes (Trigger output for heating pad)
Certifications CE, FCC, RoHS

JK BMS 200ah

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