BMS Controller JIKONG JK-BD4A8S4P, (40 A, for LiFePO4/Li-ion/LTO batteries)
id: 915940
BMS Controller JIKONG JK-BD4A8S4P, (40 A, for LiFePO4/Li-ion/LTO batteries)
General information
Warranty
Price coming soon
General information
0.55 kg Warranty: 6 months
Supports up to 8 battery cells with a nominal current of 40 A and active balancing of 0.4 A.
Price coming soon
The JK-BMS BD4A8S4P controller supports from 3 to 8 battery cells with a maximum charge and discharge current of 40 A, and in peak mode - up to 60 A. It provides efficient energy distribution between cells due to the balancing current 0.4 A.
Attention!
The activation button is not included, it must be purchased separately.
Features
- Simple connection via Bluetooth in the mobile app.
- Protection against short circuit, overcharge, overdischarge, and overcurrent.
- Support from 3 to 8 cells for lithium batteries of various types.
- Active balancing system for efficient energy distribution.
- Support for additional communication modules (CAN, RS485).
- Heating function at low temperatures.
Technical specifications
| Model | BD4A8S4P |
| Number of cells for Li-ion | 3S~8S |
| Number of items for Lifepo4 | 4S-8S |
| Number of elements for LTO | 7S-8S |
| Balancer type | Active balancer |
| Balance current | 0.4 A |
| MoSFET main circuit resistance | 2.8 mΩ |
| Rated charge current | 40 A |
| Rated discharge current | 40 A |
| Peak discharge current | 60 A |
| Overcurrent Protection | 10 A-60 A adjustable |
| Connecting cells | Common port |
| Voltage Accuracy | ±5 mV |
| Overcharge protection voltage | 1.2V - 4.35V adjustable |
| Overcharge protection cancellation voltage | 1.2V - 4.55V adjustable |
| Overcurrent protection activation time | 2 s - 120 s adjustable |
| Over-discharge protection voltage | 1.2V - 4.35V adjustable |
| Over-discharge protection cancellation voltage | 1.2V - 4.35V adjustable |
| Number of temperature sensors | 3 |
| Short circuit protection | Yes |
| Bluetooth function | App for Android and IOS |
| RS485 remote control | Supports |
| Additional communication ports | CAN (optional) |
| Size | 110 mm × 73 mm × 17 mm |
| Operating temperature range | -30°C ~ 70°C |
Six types of battery protection
- Short circuit protection
- Overcharge protection (possibility of setting the limit voltage)
- Protection against overdischarge (possibility of setting the limit voltage)
- Current protection (high current overload protection setting)
- Protection against overheating.
- Control of connection and disconnection of the balancing connection
Building and configuring Jikong
To assemble batteries using BMS JK (Jikong), please use the English version of the instructions "JK BMS Active Bluetooth BMS Manual". By default, the password for entering the program is 1234, the password for opening access to the settings is 123456.
BMS connection through the application
- Turn on Bluetooth on your phone.
- Start the JK BMS app.
- Click on the icon in the upper left corner to scan devices.
- Once the scan is complete, select your device name, for example "JK-B2A24S".
- The first time you connect, the application will ask you to enter a password.
- The default password for connection is 1234.
- After successful connection, the password will be remembered by the application.
- For the next connection, the application will automatically connect to the device.
Assembly
- Smart BMS board with built-in Bluetooth — 1 pc.
- Temperature sensor (40 cm) — 1 pc.
- Balancing wires with a connector (75 cm) — 1 pc.
Not included
- Wire for BMS control
- Activation button
BMS controller type:
- Li-ion
- LiFePO4
- LTO
BMS controller BMS-usage:
- For LiFePO4/Li-ion/LTO batteries
BMS controller сила струму:
- 40 A
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