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HS-7S44A-700W-A6

The BMS mainboard in a portable energy storage system is a vital component responsible for monitoring, controlling, and safeguarding the battery pack. It tracks battery parameters like voltage, current, and temperature, estimates battery health and status, manages charging and discharging, and offers protection against overcurrent, overvoltage, and overheating. The BMS mainboard also communicates with external systems through interfaces like CAN bus or RS-485, facilitating data exchange and control. Overall, it ensures safe operation, optimal performance, and longevity of the battery pack in the portable energy storage system.
Availability:
  • HS-7S44A-700W-A6

  • Helithtech

Product Description

BMS Mainboard Specifications:

  • Monitoring: Monitors battery voltage, current, and temperature in real-time.

  • Protection: Provides overcurrent, overvoltage, undervoltage, and overtemperature protection.

  • Battery Health Estimation: Estimates remaining capacity and battery health based on collected data.

  • Balancing: Balances individual cell voltages during charging and discharging to improve overall battery pack performance.

  • Control: Controls charging and discharging processes to ensure safe operation.

  • Communication: Interfaces include CAN bus, RS-485, and UART for external system communication.

  • Data Logging: Records historical data for diagnostic and analysis purposes.

  • Alerts: Generates alerts and alarms for critical events to prevent damage and ensure user safety.

  • Software: Embedded software for configuration, data logging, and alarm settings.

  • Dimensions: Compact form factor for integration into various portable energy storage systems.

  • Compatibility: Designed to work with various battery chemistries and configurations.

  • Efficiency: Optimized power management algorithms for energy efficiency.

  • Integration: Seamlessly integrates with battery management software and external displays.

  • Reliability: Robust design to ensure long-term, reliable operation.

  • Certifications: Complies with relevant safety and industry standards.

Please note that these specifications can vary based on the specific BMS mainboard model and manufacturer.


Functional Features

  • Highly Integrated Analogue Front End

  • Isolated Power Supply Circuit

  • Integrated Serial Port IC

  • High Monomer Voltage Accuracy

  • High Current Accuracy

  • 4-Way Battery Temperature Detection

  • SOC Estimation Function

  • SOH Estimation Function

  • Short Circuit Protection Function

  • Adjustable Over-Current Protection

  • Multiple Sleep And Wake-Up Modes

  • Low Power Consumption

  • RS485, UART Communication

  • Adjustable Parameter Settings

  • High Data Refresh Rate

  • Online Upgrade Function

  • Charge Equalization Function

  • High SOC Accuracy

Parameters

No.Indicator ItemsFactory Default ParametersValueIs It Possible To SetRemark
Minimum ValueNominal ValueMaximum Value
1Monomer Overcharge ProtectionMonomer Overcharge Alarm Voltage Ucl3630mV±5mV±8mV±10mVSettable
Monomer Overcharge Protection Voltage Uup3650mV±5mV±8mV±10mVSettable
Monomer Overcharge Protection Delay2.0SSettable
Monomer Overvoltage Protection DisengagedRelease Voltage of Monomer Over-Discharge Protection3350mV±5mV±8mV±10mVSettable
Discharge Release放电电流>1A
2Monomer Over-Discharge ProtectionMonomer Over-Discharge Warning Voltage Udo2700mV±5mV±8mV±10mVSettable
Monomer Over-Discharge Protection Voltage Ude2500mV±5mV±8mV±10mVSettable
Monomer Over-Discharge Protection Delay5.0SSettable
Monomer Over-Discharge Protection DisengagedRelease Voltage of Monomer Over-Discharge Protection2800mV±5mV±8mV±10mVSettable
Release When Chargingactivated by connecting to the charger
3Total Overcharge ProtectionTotal Overcharge Warning Voltage57.6V±60mV±110mV±160mVSettable
Total Overcharge Protection Voltage Ucp58.4V±60mV±110mV±160mVSettable
Total Overcharge Protection Delay3.0SSettable
Total Overvoltage Protection DisengagedRelease Voltage of Total Overcharge Protection53.6V±60mV±110mV±160mVSettable
Discharge Releasedischarge current > 1A
4Total Over-Discharge ProtectionTotal Over-Discharge Warning Voltage43.2V±60mV±110mV±160mVSettable
Total Over-Discharge Protection Voltage Udp40.0V±60mV±110mV±160mVSettable
Total Over-Discharge Protection Delay5.0SSettable
Total Over-Discharge Protection DisengagedRelease Voltage of Total Over-Discharge Protection44.8V±60mV±110mV±160mVSettable
Release When Chargingactivated by connecting to the charger
5Charging Overcurrent ProtectionCharging Overcurrent Warning Current Icm29A±0.3A±0.6A±0.9ASettable
Charging Overcurrent Protection Current Icp30A±0.3A±0.6A±0.9ASettable
Charging Overcurrent Protection Delay5.0SSettable
Charging Overcurrent Protection DisengagedDischarge Releasedischarge current > 1A
6Discharging Overcurrent 1 ProtectionAlarm Current of Discharging Overcurrent 1 Idm67A±1A±1.5A±2ASettable
Protection Current of Discharging Overcurrent 187A±1A±1.5A±2ASettable
Protection Delay of Discharging Overcurrent 15.0SSettable
Discharging Overcurrent 1 Protection DisengagedCharge ReleaseCharging current > 1A
7Discharge Overcurrent 2Protection Current of Discharging Overcurrent 2软件设置75A模拟前端的过流保护最小值为90A)±1A±1.5A±2ASettable
Protection Delay of Discharging Overcurrent 23000mSSettable
Discharge Overcurrent 2 Protection DisengagedCharge ReleaseCharging current > 1A
8Short Circuit ProtectionShort Circuit Protection Current>300A
Short Circuit Protection Delay300μS
Short Circuit Protection DisengagedShort-circuit protection will be disengaged when charging
Short-circuit protection will be automatically lifted after 1 min when the load is removed.
9MOS High Temperature ProtectionTemperature Value of MOS High Temperature Warning87℃


Settable
Temperature Value of MOS High Temperature Protection90℃
Settable
Release Temperature of MOS Protection80℃
Settable
10Cell Temperature ProtectionTemperature Value of Charging Low Temperature Warning3℃
Settable
Temperature Value of Charging Low Temperature Protection0℃
Settable
Release Temperature of Charging Low Temperature Protection6℃
Settable
Temperature Value of Charging High Temperature Warning47℃
Settable
Temperature Value of Charging High Temperature Protection50℃
Settable
Release Temperature of Charging High Temperature Protection47℃±2℃Settable
Temperature Value of Discharge Low Temperature Warning-20℃
Settable
Temperature Value of Discharge low temperature protection-23℃
Settable
Release Temperature of Discharge Low Temperature Protection-17℃
Settable
Temperature Value of Discharge High Temperature Warning57℃
Settable
Temperature Value of Discharge High Temperature Protection60℃
Settable
Release Temperature of Discharge High Temperature Protection55℃
Settable
11Ambient Temperature AlarmsTemperature Value of Ambient Low Temperature Warning-20℃
Settable
Temperature Value of Ambient Low Temperature Protection-23℃
Settable
Release Temperature of Ambient Low Temperature Protection-17℃
Settable
Temperature Value of Ambient High Temperature Warning57℃
Settable
Temperature Value of Ambient High Temperature Protection60℃
Settable
Release Temperature of Ambient High Temperature Protection55℃
Settable
12Equalization FunctionThe Voltage When  The Equalization Function is Turned On3300mV
Settable
The Differential Pressure When The Equalization Function is Turned On30mV
Settable
13Full Charge JudgementFull Charge Voltage>58.2V±60mV±110mV±160mVSettableStop charging after the current and voltage are met, and update the SOC to 100%
Cut-off Current<1A


Settable
14Positive secondary overcharge voltage protectionSecondary charging monomer protection3.8V
Not Settable
Monomer Overcharge Protection Delay3~5S
15Continuous charging currentIcr<30A±0.3A±0.6A±0.9A

Continuous discharging currentIdr≤65A±1A±1.5A±2A

16Current ConsumptionNominal Mode4.5~10mANot Settable
Sleeping Mode120~200uANot Settable
Main circuit resistance6~10mRNot Settable


Precautions

Precautions

Precautions and Considerations for BMS Mainboard:

  1. Safety First: Always prioritize safety when working with the BMS mainboard and associated components. Follow manufacturer guidelines and wear appropriate protective gear.

  2. Qualified Personnel: Installation, maintenance, and troubleshooting should be performed by qualified personnel familiar with battery systems and electronics.

  3. Voltage Awareness: Be cautious of high voltages present in the battery system. Ensure proper insulation and isolation when handling the mainboard.

  4. Proper Ventilation: Ensure proper ventilation to dissipate heat generated during operation. Avoid placing the BMS mainboard in enclosed or poorly ventilated spaces.

  5. Environmental Conditions: Operate the BMS mainboard within specified temperature and humidity ranges to ensure optimal performance and longevity.

  6. Correct Wiring: Double-check wiring connections, ensuring correct polarity and secure connections to prevent electrical faults.

  7. Electrostatic Discharge (ESD): Handle the mainboard components with ESD precautions to avoid damaging sensitive electronics.

  8. Compatibility: Ensure the BMS mainboard is compatible with the battery chemistry, voltage, and configuration you are using.

  9. Calibration: Follow calibration instructions carefully, if applicable, to ensure accurate readings and proper functionality.

  10. Regular Inspection: Periodically inspect the mainboard for any signs of physical damage, loose connections, or abnormal behavior.

  11. Software Updates: Keep the embedded software up to date if the manufacturer provides updates, as these may include important enhancements or fixes.

  12. Emergency Protocols: Familiarize yourself with emergency shutdown procedures in case of abnormal behavior, overtemperature, or other critical situations.

  13. Documentation: Keep all user manuals, datasheets, and technical documentation readily accessible for reference.

  14. Testing: Before deploying the BMS mainboard in a critical application, conduct thorough testing to ensure it operates as intended.

  15. User Training: Train users or operators on the basics of the BMS mainboard, its functions, and appropriate actions in case of alarms or warnings.

  16. Legal and Regulatory Compliance: Ensure that the BMS mainboard and associated system comply with relevant safety and industry standards.

Remember that these considerations may vary based on the specific BMS mainboard model, battery system, and application. Always refer to the manufacturer's documentation for detailed guidance.

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Battery Based Energy System Integration Expert
A new energy system integration company invested by Great Power's fund and a number of technical experts in different fields.
Our company offer lithium battery based energy storage solution and battery pack to cusotmer all over the world.With experienced technical engineers, Helith truns idea to product mass production.
 
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