Ligoo / Anhui Ligoo Battery Management Systems and High-Voltage Control Units

Ligoo / Anhui Ligoo battery management systems (BMS) and high-voltage control units: BCU600-A, BMU70-A, BPU protection boxes, BAU controllers, and LGD chillers.

Ligoo / Anhui Ligoo BCU series high-voltage battery cluster control units

High-voltage cluster control units Ligoo / Anhui Ligoo models BCU600-A, BCU12250A1, BCU12200A2, and BCU24100A2 manage battery strings rated from 600V up to 1000V. These assemblies monitor insulation resistance, track main branch currents, and sequence high-voltage contactors.

Continuous tracking of total battery string voltage and high-voltage busbar insulation status
Dual-channel current measurement across charge and discharge paths via precision Hall sensors
Automated sequencing for pre-charge, main positive, and main negative power relay contactors
Galvanically isolated telemetry communication with master controllers over CAN and RS485 buses

Ligoo / Anhui Ligoo BMU series slave battery module management units

Slave cell monitoring boards Ligoo / Anhui Ligoo models BMU70-A, BP63D8, BP63D3, and CMS144B5 perform individual cell voltage and temperature acquisition for LFP and NMC lithium battery packs, featuring integrated passive resistive or active inductive cell charge balancing circuits.

High-accuracy cell voltage acquisition across series strings within a 2 mV tolerance window
Multi-point NTC thermistor temperature sensing mounted directly on cell terminal busbars
Active inductive energy transfer and passive resistor balancing to equalize cell state of charge
Noise-immune daisy-chain serial communication interface with transformer galvanic isolation

Ligoo / Anhui Ligoo BPU series battery cluster protection units

High-voltage protection boxes Ligoo / Anhui Ligoo models BPU60150A1, BPU4860A1, BPU6060A1, BPU6480A1, and BPU7280B1 combine DC power contactors, high-speed semiconductor fuses, and branch control boards into a unified protection assembly for stationary energy storage racks.

Integrated high-voltage DC contactors, fast-acting fuses, and manual maintenance disconnects
Active inter-cluster current balancing logic preventing circulating currents in parallel racks
Rapid fault isolation tripping individual battery strings during overcurrent or thermal events
Shielded sheet-metal enclosure formatted for standard nineteen-inch industrial battery cabinets

Ligoo / Anhui Ligoo BAU series master battery array management units

Master array controllers Ligoo / Anhui Ligoo models BA62C1, BA62E1, ESU48200E5, and ESU48100E5 form the top tier of the three-level energy storage BMS hierarchy. These units coordinate up to 32 parallel battery clusters and interface directly with power conversion systems.

Centralized data aggregation from multiple BPU cluster boxes and thousands of individual cells
Integrated HMI touch display variant BA62E1 enabling local rack parameter inspection and alarm reset
Real-time computation of array-level SOC, SOH, and dynamic charge-discharge power limits
Multi-protocol Ethernet and RS485 ports supporting Modbus TCP and IEC 61850 for EMS integration

Ligoo / Anhui Ligoo VDC vehicle domain controllers and T-BOX telematics

Automotive electronic assemblies from Ligoo / Anhui Ligoo encompass VDC vehicle domain controllers, T-BOX intelligent telematics terminals, and high-voltage BDU and PDU power distribution boxes engineered to functional safety standards for electric trucks, buses, and heavy machinery.

Vehicle domain controllers VDC and VCU coordinating traction torque, braking, and thermal loops
Intelligent T-BOX terminals featuring cellular 4G/5G modems, GNSS positioning, and CAN logging
High-voltage BDU and PDU distribution assemblies with pyro-fuses and pre-charge relay modules
Ruggedized die-formed aluminum housings sealed to IP67 against moisture, dust, and road vibration

Ligoo / Anhui Ligoo LGD liquid cooling units and battery safety sensors

Thermal management and fire prevention subsystems from Ligoo / Anhui Ligoo include LGD and LGDD liquid cooling chillers, ASM012B2 aerosol gas detectors, and GED024C1 exhaust units designed to maintain optimal cell temperatures and prevent thermal runaway in lithium battery banks.

Liquid cooling chillers LGD-12P1L-A, LGD-10P1L-A, and LGDD-100P24AW-A with heating functions
Precision coolant circulation keeping temperature gradients across battery packs under 3 degrees
Composite gas and aerosol sensors ASM012B2 and LG-T-JCAYTZ-A1 detecting early off-gas venting
Automated gas exhaust dampers GED024C1 for rapid ventilation of battery enclosures during alarms

Three-tier hierarchy of Ligoo BMU-BPU-BAU stationary battery management systems

Industrial battery energy storage management systems from Ligoo / Anhui Ligoo operate on a three-tier hardware hierarchy separating cell sensing, string protection, and plant-level dispatch.

At the module tier, slave boards BMU70-A and BP63D8 acquire individual series cell voltages and busbar temperatures. At the rack tier, high-voltage units BCU600-A and BPU60150A1 measure total string current, monitor insulation impedance to ground, and sequence main DC power contactors.

At the array tier, master controllers BA62C1 and BA62E1 aggregate telemetry across up to 32 parallel battery racks and coordinate charge-discharge power limits with bi-directional power conversion inverters.

Insulation resistance monitoring and pre-charge sequencing in BCU600-A units

High-voltage cluster control units Ligoo / Anhui Ligoo series BCU600-A supervise safe power switching across DC battery strings rated from 600V to 1000V.

Prior to closing main positive and negative power contactors, the controller engages a dedicated pre-charge relay path through a current-limiting resistor, gradually equalizing voltage across inverter DC-link capacitors to prevent contactor contact welding.

An integrated low-frequency signal injection detector continuously evaluates leakage resistance between high-voltage rails and the grounded enclosure frame, triggering staged protection alarms if insulation impedance drops below threshold.

Active inductive and passive resistive cell balancing in BMU slave modules

Usable capacity and cycle life across lithium iron phosphate (LFP) battery banks depend on maintaining uniform state of charge across all series cells.

Slave management boards Ligoo / Anhui Ligoo series BMU70-A, BP63D8, and CMS144B5 provide both passive resistive bleed balancing and active inductive charge transfer options.

Active balancing circuits shuttle energy from higher-voltage cells to lower-voltage neighbors with minimal thermal dissipation. Equalizing cell voltages prevents premature string cutoff triggered by a single weak cell hitting overvoltage or undervoltage thresholds during high-rate cycling.

Suppression of inter-cluster circulating currents in parallel BPU protection racks

Connecting multiple high-voltage battery racks in parallel onto a common DC busbar introduces risks of uncontrolled circulating currents caused by slight variations in internal resistance or string voltage.

Protection units Ligoo / Anhui Ligoo series BPU (BPU60150A1, BPU6480A1, BPU7280B1) integrate active inter-cluster current regulation logic.

The controller continuously compares branch voltages and currents, coordinating switching sequences so each battery string operates within its safe current envelope.

During short-circuit or thermal overload events, fast-acting semiconductor fuses and DC contactors isolate the affected rack immediately.

Liquid thermal management chillers and early off-gas detection in BESS enclosures

Maintaining uniform cell temperatures is essential to slow cathode degradation and prevent thermal runaway in high-density battery containers.

Liquid cooling chillers Ligoo / Anhui Ligoo models LGD-12P1L-A and LGDD-100P24AW-A circulate water-glycol coolant through cold plates beneath battery modules, holding cell-to-cell temperature differentials within 2 to 3 degrees Celsius.

Simultaneously, safety detectors ASM012B2 and LG-T-JCAYTZ-A1 sample enclosure air for hydrogen, carbon monoxide, and electrolyte vapor aerosols, commanding GED024C1 exhaust dampers to ventilate the cabinet upon early warning.

Component identification and hardware matching via manufacturer data labels

Selecting replacement BMS control modules, slave sensing boards, and wiring harnesses for Ligoo / Anhui Ligoo systems requires verifying exact factory data plate codes.

Barcode labels affixed to each BCU, BMU, BPU, or VDC housing specify the complete model designation (such as BCU600-A or BPU60150A1), rated system voltage, printed circuit board hardware revision, and embedded firmware version.

Submitting a clear nameplate photo along with battery string configuration details—series cell count, LFP or NMC chemistry, and CAN or RS485 protocol—ensures full electrical pinout and communication compatibility.

Ligoo / Anhui Ligoo and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Ligoo / Anhui Ligoo and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.