© Copyright 2026. All Rights Reserved
JK BMS BD4A20S10P Smart Active Balance BMS – 8S–20S, 100A, 0.4A
Availability:
In stock
Rs.15,100.00
The JK BMS BD4A20S10P Smart Active Balance BMS is a battery management system designed for compatible lithium battery packs. It features active cell balancing, Bluetooth communication, and configurable battery protection functions.
This model supports 7S–20S Li-ion, 8S–20S LiFePO4, and 14S–20S LTO battery configurations according to the JKBMS model specification. Its active balancing current is 0.4A.
The BMS provides battery monitoring and protection functions, including cell voltage monitoring, overcharge and over-discharge protection, overcurrent protection, short-circuit protection, and temperature protection. Through the JK BMS mobile application, users can monitor battery status and adjust supported settings over Bluetooth.
Designed for battery-pack projects, this BMS can be considered for compatible energy storage and electric mobility applications. Confirm the battery chemistry, cell count, current requirements, wiring, and configuration before installation.
Key Features
-
Model: JK-BD4A20S10P
-
Active cell balancing
-
Active balancing current: 0.4A
-
Battery configuration: model-dependent, up to 20S
-
Supports compatible Li-ion, LiFePO4, and LTO battery configurations
-
Bluetooth communication
-
Battery monitoring through the JK BMS app
-
Configurable battery protection functions
-
Same-port charge/discharge configuration listed by the product specification
Technical Specifications
| Specification | Confirmed Data |
|---|---|
| Model | JK-BD4A20S10P |
| BMS type | Smart active balance BMS |
| Active balancing current | 0.4A |
| Li-ion cell strings | 7S–20S |
| LiFePO4 cell strings | 8S–20S |
| LTO cell strings | 14S–20S |
| Continuous discharge current | 100A |
| Maximum discharge current | 200A |
| Communication | Bluetooth |
| Main circuit resistance | 2.8mΩ |
Important: Current ratings and supported cell counts must be checked against the exact hardware revision and battery chemistry. The manufacturer's model specification lists 100A continuous discharge and 200A maximum discharge for this 10P model family. Confirm charge-current rating separately before using it as a charging specification.
Product Applications
Potential applications for appropriately configured battery packs include:
-
Lithium battery energy storage
-
Solar energy storage battery packs
-
Backup power battery systems
-
Electric mobility battery projects
-
DIY lithium battery pack development
Application suitability depends on the battery chemistry, cell count, load, wiring, cooling, and system design.
Related Products
Explore battery cells and battery accessories at Electronics Hub:
These are related battery products; compatibility with this BMS is not confirmed by the links alone. Verify cell count, chemistry, voltage, and electrical requirements before combining products.
Installation Note
Select the BMS according to the exact battery chemistry and series count. Follow the manufacturer's wiring instructions and verify balance-wire order before connecting the battery. Incorrect wiring can damage the BMS or battery pack. Use appropriate external fusing and system-level protection.