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JK BMS BD4A17S4P Smart Active Balance BMS 7S–17S 40A with 0.4A Balancing for Li-ion, LiFePO4 & LTO Batteries
Availability:
In stock
Rs.10,000.00
Build and manage a compatible lithium battery pack with the JIKONG JK-BD4A17S4P Smart Battery Management System (BMS).
Designed for battery packs within its supported cell-count ranges, this smart BMS combines battery monitoring, active balancing, and protection functions. Its 0.4A active balancing capability helps manage voltage differences between cells, while its smart monitoring features support battery pack management.
The BD4A17S4P is specified for 7S–17S Li-ion, 8S–17S LiFePO4, and 12S–17S LTO battery configurations. It has a 40A continuous discharge rating and active balancing.
Key Features
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Model: JK-BD4A17S4P
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Active balancing: 0.4A
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Continuous discharge current: 40A
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Battery chemistry support: Li-ion, LiFePO4, and LTO
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Li-ion configuration: 7S–17S
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LiFePO4 configuration: 8S–17S
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LTO configuration: 12S–17S
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Smart BMS: Battery monitoring and management
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Common-port connection: Charge and discharge share a common port
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Protection functions: Overcharge, over-discharge, overcurrent, and short-circuit protection are listed for this model
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | JK-BD4A17S4P |
| Brand | JIKONG / JK BMS |
| BMS type | Smart active balance BMS |
| Li-ion cell count | 7S–17S |
| LiFePO4 cell count | 8S–17S |
| LTO cell count | 12S–17S |
| Active balancing current | 0.4A |
| Continuous discharge current | 40A |
| Maximum discharge current | 60A |
| Charge/discharge connection | Common port |
| Cell voltage measurement range | 1–5V |
| Voltage acquisition accuracy | ±5mV, listed by manufacturer product page |
| Temperature sensing points | 3, according to manufacturer product listing |
| Bluetooth | Supported; verify included hardware revision and app requirements |
| RS485 | Listed as a default interface in the manufacturer product information |
| CAN | Custom option; confirm configuration before purchase |
Important: The manufacturer’s product information and manuals may show different details depending on revision or configuration. Confirm the exact board revision, interface, harness, and accessories before installation.
Product Benefits
Active Cell Balancing
The 0.4A active balancing function is designed to help equalize cell voltages within a compatible battery pack.
Smart Battery Monitoring
The smart BMS provides battery monitoring and management functions. Bluetooth availability is listed for this model, but the exact app, firmware, and connection configuration should be checked for the supplied revision.
Multiple Battery Chemistry Options
The model is listed for Li-ion, LiFePO4, and LTO packs, with different supported series counts for each chemistry. Select the correct chemistry and cell count before wiring.
Battery Protection Functions
Manufacturer product information lists overcharge, over-discharge, overcurrent, and short-circuit protection. Protection settings and thresholds must be configured for the actual battery chemistry and pack.
Compatibility
| Battery Chemistry | Supported Series |
|---|---|
| Li-ion | 7S–17S |
| LiFePO4 | 8S–17S |
| LTO | 12S–17S |
Use only with a battery pack that matches the supported chemistry and series count. This BMS is not a universal fit for every lithium battery pack.
Typical Applications
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Compatible lithium battery pack construction
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Battery monitoring and protection projects
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Solar and energy-storage battery systems
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DIY battery assemblies
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Li-ion, LiFePO4, and LTO battery management projects
These are general application categories. Actual suitability depends on the battery configuration, current requirements, wiring, thermal conditions, and system design.
Installation & Safety
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Confirm battery chemistry and series count before connecting.
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Follow the wiring diagram for the exact BMS revision.
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Do not connect or disconnect balance leads in an arbitrary order.
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Verify cell voltages and polarity before powering the BMS.
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Use suitable external fuses, conductors, and protective equipment for the battery system.
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Do not exceed the specified continuous current.
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Configure protection thresholds according to the battery manufacturer's requirements.
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Installation should be performed by a person familiar with lithium battery systems.
Related Products & Internal Links
Add these relevant Electronics Hub links to the product description after confirming the current product pages:
Compatibility note: These links are related battery products, not confirmed compatible pack recommendations for this BMS. Verify cell chemistry, series count, current rating, and pack construction before recommending them together.