Specifications
- JK-BD4A8S4P 4S-8S 40A Smart Active Balancer BMS with Bluetooth
- Product Model: JK-BD4A8S4P
- Supported Series: 4S to 8S (LiFePO4), 3S to 8S (Li-ion), 6S to 8S (LTO)
- Continuous Charge/Discharge Current: 40A
- Peak Discharge Current: 60A (up to 2 minutes)
- Active Balancing Current: 0.4A
- Balancing Method: Active Energy Transfer Balance (Full State On)
- Single Cell Voltage Range: 1V to 5V
- Voltage Acquisition Accuracy: ±5mV
- Main Circuit Conductive Resistance: 0.8mΩ
- Overcharge Protection Voltage: 1.2V to 4.35V (Adjustable)
- Overdischarge Protection Voltage: 1.2V to 4.35V (Adjustable)
- Overcurrent Protection Delay: 2s to 120s (Adjustable)
- Communication Interfaces: Built-in Bluetooth, RS485, CAN, Heating Interface
- App Compatibility: Android, iOS, HarmonyOS via JIKONG Smart BMS App
- Wiring Port Type: Common Port for Charging and Discharging
- Coulomb Counter: Integrated high-precision SOC calculation
- Temperature Sensors: 1 x External NTC Temperature Sensor
- Dimensions: 153.9mm x 87mm x 17.6mm
- Shell Construction: Heavy-duty Aluminum Alloy Enclosure
Features
- Active Energy Transfer Balancer: Utilizes an active 0.4A continuous balance current to transfer energy efficiently between high and low voltage cells without generating excess waste heat.
- Smart Wireless Monitoring: Integrated Bluetooth interface connects directly to the JIKONG mobile app on Android and iOS devices for live voltage monitoring, configuration editing, and status checks.
- Multi-Chemistry Compatibility: Offers versatile support for 4S to 8S LiFePO4, 3S to 8S Li-ion, and 6S to 8S LTO battery configurations.
- Reliable Current Capacity: Designed for steady 40A continuous charge/discharge capability with a peak discharge capacity of up to 60A.
- Comprehensive Circuit Protection: Features fully configurable protection limits against overcharge, overdischarge, overcurrent, short circuit, and thermal anomalies.
- Rugged Heat-Sink Design: Housed in a durable aluminum alloy plate casing that optimizes heat dissipation while offering physical protection.
- The JK-BD4A8S4P 4S-8S 40A Smart Active Balancer BMS with Bluetooth is a compact and intelligent battery management solution designed for medium-scale solar battery banks, electric bikes, and custom lithium battery systems.
- Powered by active energy-transfer balancing technology, this device dynamically distributes power between individual battery cells with a 0.4A balancing current, preventing cell imbalance and extending total battery lifespan.
- Equipped with built-in Bluetooth connectivity, users can easily monitor voltage status, check state-of-charge via the integrated Coulomb counter, and adjust safety parameter thresholds via the JIKONG smartphone app.
- Encapsulated in a heat-dissipating aluminum shell and supporting up to 40A continuous working loads, it ensures complete, reliable protection for LiFePO4, Li-ion, and LTO lithium packs.
What is the price of JK-BD4A8S4P 4S-8S 40A Smart Active Balancer BMS with Bluetooth in Bangladesh?
The latest price of JK-BD4A8S4P 4S-8S 40A Smart Active Balancer BMS with Bluetooth in Bangladesh is Price: ৳3,775.00 taka for 1Pack of this product. You can buy this product at a better and cheaper price from our website and also you can visit our warehouse between work hours 10am to 8pm.
Buy JK-BD4A8S4P 4S-8S 40A Smart Active Balancer BMS with Bluetooth in Bangladesh from online at Dunia.com.bd.
In Bangladesh, you can get the original JK-BD4A8S4P 4S-8S 40A Smart Active Balancer BMS with Bluetooth From Dunia.com.bd . We have a few collections of latest Controller Module to purchase. Order Electronic Modules Online at our website Or Visit our warehouse to get your product at lowest price.
FAQ
- What is JK-BD4A8S4P continuous discharge current rating?
It supports a continuous charge and discharge current of 40A with 60A peak current capacity. - How does the active balancer function on this BMS?
It actively transfers energy between battery cells at 0.4A to maintain precise voltage equality. - Does JK-BD4A8S4P feature built-in Bluetooth communication?
Yes, it includes integrated Bluetooth to monitor and configure parameters via the JIKONG smartphone app. - Which battery cell chemistries are compatible with this BMS?
It is fully compatible with LiFePO4, Lithium-ion, and Lithium Titanate (LTO) battery chemistry packs. - What cell series configuration does JK-BD4A8S4P support?
It supports 4S to 8S LiFePO4, 3S to 8S Li-ion, and 6S to 8S LTO battery setups. - Are protection voltage and current limits customizable?
Yes, users can manually adjust protection thresholds through the mobile software application. - Does it include temperature monitoring protection?
Yes, it comes with an external NTC temperature sensor to safeguard against thermal risks. - Is this BMS suitable for 12V and 24V solar applications?
Yes, it perfectly suits 4S 12.8V and 8S 25.6V solar power storage setups. - Does this unit use a common wiring port design?
Yes, it utilizes a unified common port for both charging and discharging operations. - What components are included inside the product package?
The package contains the BMS unit, sampling wiring harness, external temperature sensor, and switch wire.













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