HKIVI BMS lithium battery intelligent protection board is a
management system tailored for large-capacity series lithium
battery packs, with functions such as voltage acquisition,high
current active equalization, overcharge, overdischarge, overcurrent
and overtem-perature protection, coulomb counter Bluetooth
communication, GPSremote and other functions .Applicable to lithium
iron phosphate, ternary lithium and other battery types.Relying on
the energy transfer active equalization technology with independent
intellectual property rights, the protection board can achieve a
maximum continuous equalization current of 2A. The high-current
active equalization technology can ensure the consis-tency of the
battery to the greatest extent, improve the mileage of the battery,
and delay the aging of the battery.The protective board has a
supporting mobile APP, which supports ANDROID andlOS operating
systems. The APP can be connected to the protection board through
the Bluetooth of the mobile phone to check the working status of
the battery, modify various working parameters of the protection
board, control the charging and discharging switch, and so on. The
protection board is small in size, easy to operate, and full of
functions, and can be widely used in battery packs for small
sightseeing cars, scooters, shared cars, high-power energy storage,
base station backup power, and solar power stations.
BMS 48V (Battery Management System) is a battery management system
specifically designed for 48-volt battery systems. 48V battery
systems are becoming increasingly popular in various applications,
such as:
Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs): Many
electric and hybrid vehicles are adopting 48V electrical
architectures as an alternative to the traditional 12V systems. The
48V system can power auxiliary components, improve fuel efficiency,
and provide a cost-effective solution for electrification.
1. Solar and Energy Storage Systems: 48V battery banks are commonly
used in off-grid and grid-tied solar energy storage systems,
providing a reliable and efficient energy storage solution.
2. Industrial and Recreational Equipment: 48V battery packs are
used in a wide range of industrial and recreational applications,
such as forklifts, golf carts, e-bikes, and power tools.
BMS 48V is responsible for managing and monitoring the 48V battery
pack to ensure safe and efficient operation. Here are some of the
key features and functions of a 48V BMS:
1. Cell Balancing: The BMS 48V monitors the individual cell
voltages within the battery pack and performs cell balancing to
equalize the state of charge (SOC) across all cells. This helps to
maximize the battery pack's capacity and extend its lifespan.
2. Overcharge and Overdischarge Protection: The BMS 48V safeguards
the battery pack by preventing overcharging and overdischarging,
which can lead to battery damage or safety hazards. It continuously
monitors the battery voltage and disconnects the charge or load
when critical thresholds are reached.
3. Temperature Monitoring: The BMS 48V measures the temperature of
the battery pack and takes appropriate actions, such as reducing
the charge/discharge rates or triggering safety measures, if the
temperature exceeds safe limits.
4. State of Charge (SOC) Estimation: The BMS employs algorithms to
accurately estimate the battery pack's state of charge, providing
users with information about the remaining usable capacity.
5. Fault Detection and Alarms: The BMS 48V includes fault detection
mechanisms to identify abnormalities or malfunctions within the
battery system, triggering alarms and notifications to alert the
user or the system controller.
6. Communication Interfaces: Many BMS 48V systems offer
communication interfaces, such as CAN bus, RS485, or Bluetooth,
allowing integration with other control systems, monitoring
platforms, or remote access for data logging and diagnostics.
When selecting a 48V BMS, it's essential to ensure compatibility
with the specific battery chemistry (e.g., lithium-ion, lead-acid),
the number of cells in the battery pack, and the operational
requirements of the application. Consulting with the BMS
manufacturer or a battery system integrator can help ensure the
appropriate selection and integration of a 48V BMS for your
specific needs.
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.
