Chengdu Heltec Energy Technology Co., Ltd.
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High Voltage BMS Relay 400V 800V 500A 1000A with CAN/RS485
Specifications
MAX 240S LFP/NCM
MAX 300S LTO
Product Information
| Brand Name: | HeltecBMS |
| Material: | PCB board |
| Origin: | Mainland China |
| Warranty: | One year |
| MOQ: | 1 set |
| Battery Type: | NCM/LFP/LTO |
| Balance Type: | Passive balancing |
Customization
- Customized logo
- Customized packaging
- Graphic customization
Package
- 1. Master-Slave High Voltage BMS *1 set. (Other parts according to your needs)
- 2. Anti-static bag, anti-static sponge and corrugated case.
Purchase Details
- Shipping From:
1. Company/Factory in China
2. Warehouses in United States/Poland/Russia/Brazil
Contact Us to negotiate shipping details
- Payment: 100% TT is recommended
- Returns & Refunds: Eligible for returns and refunds
Example of Package Details
128S 500A split port BMS package includes:
1* Master BMS-BMU with harness
1* Hall Sensor
3* Relay
1* Pre-amp resistance
128S slave boards (quantity and each number of strings can be customized)
128S 500A same port BMS package includes:
1* Master BMS-BMU with harness
1* Hall Sensor
3* Relay
1* Pre-amp resistance
1* 500A Anti-reverse diode
128S slave boards (quantity and each number of strings can be customized)
Frame Schematic
Design
The interior of the product adopts modular design, which is divided into master control module-BMU master control module, slave control acquisition unit-BCU voltage and temperature acquisition equalization module, BTU temperature acquisition expansion module, and BIU insulation detection module. According to the requirements of the charging and discharging operating conditions of the lithium battery pack in different application scenarios, the appropriate selection of the slave control module unit effectively improves the compatibility of the product for various terminal applications.
It supports 500A continuous current output, and the peak current can reach 2000A. It is not easy to be heated and damaged. If damaged, the main control will not be affected. You only need to replace the relay to reduce maintenance costs. Current relay power consumption: 250mA.
The relay is a main circuit switch. You can choose different currents, but the maximum current does not exceed 500A. It is recommended that the working power consumption be less than 500mA. BMS only provides 12V control voltage to control the introduction of relay.
Features
- With SOC estimation function.
- Consistency and extend battery life.
- With charge and discharge control function.
- Features automatic balance management to improve battery pack.
- Has complete fault level alarm function, including voltage, current, temperature, insulation and other fault alarms.
- Functions of single voltage data acquisition, total voltage data acquisition, current acquisition, temperature acquisition, and battery pack insulation state detection.
Parameters:
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Parameters |
Indicator |
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Power supply |
18-150V (Note, if the battery pack is lower than 96V, the total voltage of the battery can be used for power supply, no external DCDC) |
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System power consumption |
Working mode: <10ma; Sleep mode: <1ma; OFF mode: <50uA |
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System startup method |
External passive switch signal (default self-locking switch) |
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Number of cell collection strings |
MAX 240S LFP/NCM MAX 300S LTO |
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Number of temperature acquisition channels |
The default is 1/4 of the number of cell strings, which can be supported by the BTU temperature expansion module |
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Single cell voltage |
Collection range |
0～5V,support all lithium battery monitoring |
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Detection error |
≤±0.1% |
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Battery pack total voltage |
Collection range |
8～1000V |
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Detection error |
≤±0.2% |
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Charge and discharge current |
Collection range |
Hall detection method, typical ±600A range. Optional 100A, 300A, 600A, 1200A. |
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Detection error |
±1 % |
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Temperature |
Collection range |
-40～125℃ |
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Detection error |
±1℃ |
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SOC Estimation error |
≤5 % |
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Cell balance (Passive balance) |
Typical equalizing current 80mA |
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Number of relay control circuits |
6, 12V high side drive control |
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Communication method |
Up to 6 isolated CAN2.0B interfaces, vehicle communication: V_CAN, charging communication: C_CAN, internal communication I_CAN; debugging communication: D_CAN; reserved CAN: R1_CAN; reserved CAN: R2_CAN. 2 isolated RS485 interfaces, support Modbus protocol, and VCU or display. 2-way UART, can be used to connect to bluetooth module, GPS remote management or display screen, etc. |
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Operating environment |
Temperature |
-40～105℃ |
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Relative humidity |
10～90 %RH, no condensation, no corrosive gas |
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Altitude |
≤4500m |
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*Note:
Different applications, electrical connection and networking methods are different, please confirm with the company's technical personnel according to specific needs.
