Smart BMS lithium battery protection board (HKIVI-A68S100A-300A) is
a lithium battery management system designed for series lithium
battery packs. It has the functions of voltage acquisition , active
pressure difference equalization management , overcharge protection
, over-discharge protection ,over -current protection ,
over-temperature protection , Bluetooth communication , capacity
calculation , etc. The external interface includes RS485
communication , CAN communication , GPS remote communication ,
display screen etc. It can be used in scooter , small sightseeing
car , tricycle ,high-power energy storage , starting power supply
and other products .
Before turning on the power, please confirm whether the connection
of the acquisition line and other wiring is correct , whether the
power provided to the protection board is within the required
range, check whether the protection board has been placed safely,
and the total voltage of the protection board battery does not
exceed 90V . The power supply of the protection board can only be
activated after confirmation , otherwise it may cause serious
consequences such as abnormal operation or even burning
After confirming that the above operations are correct, you can
power on the protection board . Method 1 , activate by shorting the
activation connector on the protection board; Method 2, activate
the charger , the charger needs to have a voltage output, and the
output voltage is greater than the total voltage of the battery by
more than 3 V.
A Smart BMS, also known as an Intelligent BMS or Smart Battery
Management System, is an advanced battery management system that
incorporates additional features and capabilities beyond
traditional BMS functions. A Smart BMS leverages advanced
electronics, sensors, communication interfaces, and software
algorithms to provide enhanced monitoring, control, and
communication capabilities for battery systems.
Here are some key features and functions commonly found in a Smart
BMS:
1. Advanced Monitoring: A Smart BMS provides comprehensive
monitoring of battery parameters such as cell voltage, current,
temperature, state of charge (SOC), state of health (SOH), and
other relevant data. It allows real-time monitoring and accurate
measurement of battery performance and condition.
2. Communication Interfaces: Smart BMS systems often include
communication interfaces such as CAN bus (Controller Area Network),
RS485, Ethernet, or wireless protocols like Bluetooth or Wi-Fi.
These interfaces enable seamless integration with external devices,
such as controllers, inverters, or monitoring systems, allowing for
remote monitoring, control, and data exchange.
3. Data Logging and Analysis: Smart BMS systems typically include
data logging capabilities, storing historical battery performance
data, alarms, and events. This data can be analyzed to assess
battery health, identify trends, and optimize battery usage and
performance. Some Smart BMS systems may also offer cloud
connectivity for remote data storage and analysis.
4. State Estimation and Predictive Algorithms: Smart BMS systems
employ advanced algorithms and models to estimate the state of
charge (SOC), state of health (SOH), and remaining battery capacity
accurately. These algorithms can provide more accurate predictions
of battery behavior, enabling better decision-making for optimal
battery usage and maintenance.
5. Fault Detection and Diagnostic Tools: Smart BMS systems
incorporate diagnostic tools and fault detection mechanisms to
identify abnormal battery conditions or malfunctions. They can
trigger alarms, notifications, or take specific actions to mitigate
potential risks or damage.
6. Cell Balancing and Equalization: Smart BMS systems often include
active or passive balancing mechanisms to equalize the state of
charge or voltage levels among individual cells or modules within a
battery pack. This ensures optimal cell utilization and extends the
overall battery pack's lifespan.
7. Safety Protections: Smart BMS systems prioritize safety and
incorporate various protection mechanisms, such as overcharge
protection, over-discharge protection, overcurrent protection,
temperature monitoring, and short-circuit protection. These
features safeguard the battery system and prevent potential hazards
or damage.
8. User Interface and Control: Some Smart BMS systems offer
user-friendly interfaces, such as LCD displays or mobile
applications, allowing users to monitor battery status, configure
settings, and receive alerts or notifications.
Smart BMS systems are commonly used in various applications,
including electric vehicles (EVs), renewable energy systems,
industrial equipment, and grid energy storage. They enable advanced
battery management, improved performance, and enhanced safety,
while also facilitating integration with other components and
systems within a larger energy ecosystem.
There are two ways to implement the balancing function: active
balancing and passive balancing.
Both active balancing and passive balancing aim to eliminate the
inconsistency of the battery pack, but their implementation
principles are completely opposite. Here, any balance that uses
resistance to dissipate energy is called passive balance, and any
balance achieved through energy transfer is called active balance.
The inconsistency of battery cells is mainly reflected in four
aspects: SOC, internal resistance, self-discharge current, and
capacity. At present, the balancing technology of BMS is relatively
mature, and the balancing technology is mainly aimed at the SOC
level in the battery core. In an ideal world, balancing technology
balances the SOC of each cell so that all cells reach the upper and
lower voltage limits of charge and discharge simultaneously,
increasing the available capacity of the battery pack.
BMS Active and passive balance are two methods used in battery
management systems (BMS) to equalize the state of charge (SOC) or
voltage levels of individual cells within a battery pack. The goal
is to ensure that each cell operates within a desired range and
maximize the overall performance and lifespan of the battery pack.
