Battery Management System
AssemblyController monitoring state of charge, cell voltages, and electrolyte conditions, and coordinating pumps and the PCS. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Battery Management System parts and their functions
11 top-level parts · 27 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Microcontroller | 1× | Main supervisory microcontroller |
| 2 | Bare PCB | 1× | BMS main board |
| 3 | State of Charge Cell | 1× | Open-circuit-voltage cell measuring state of charge |
| 4 | Stack Voltage Monitor | 4× | Stack voltage and string current monitor |
| 5 | DC Current Shunt | 2× | DC current shunt for each polarity |
| 6 | Operator Touchscreen | 1× | Operator touchscreen interface |
| 7 | Communications Gateway | 1× | Modbus and SCADA communications gateway |
| 8 | Relay | 6× | Control relays for pumps, valves, and alarms |
| 9 | Connector | 8× | Sensor and control harness connectors |
| 10 | Wire Bundle | 1× | Internal control wiring harness |
| 11 | Power Supply | 1× | 24 V DC auxiliary supply for controls |
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Bill of materials for Battery Management System
11 top-level lines · 11 rows shown · 27 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Microcontroller | mcu | 1× | 1 | · | part |
| 2 | Bare PCB | pcb-bare | 1× | 1 | · | part |
| 3 | State of Charge Cell | grid-energy-storage-flow-soc-sensor | 1× | 1 | · | part |
| 4 | Stack Voltage Monitor | grid-energy-storage-flow-voltage-monitor | 4× | 4 | · | part |
| 5 | DC Current Shunt | grid-energy-storage-flow-current-shunt | 2× | 2 | · | part |
| 6 | Operator Touchscreen | grid-energy-storage-flow-hmi | 1× | 1 | · | part |
| 7 | Communications Gateway | grid-energy-storage-flow-comms-gateway | 1× | 1 | · | part |
| 8 | Relay | relay | 6× | 6 | · | part |
| 9 | Connector | connector | 8× | 8 | · | part |
| 10 | Wire Bundle | wire-bundle | 1× | 1 | · | part |
| 11 | Power Supply | power-supply | 1× | 1 | · | part |
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Where the battery management system is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$500. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
|
🇨🇳CATL
catl.com ↗
|
Ningde, CN | Li-ion cell & pack maker | 5,000 cells | 8–12 wks |
| evebattery.com ↗ | Huizhou, CN | Li-ion cell maker | 5,000 cells | 8–12 wks |
| amararaja.com ↗ | Tirupati, IN | Batteries & energy | 5,000 cells | 8–12 wks |
| durapowergroup.com ↗ | Singapore | Li-ion battery systems | 5,000 cells | 8–12 wks |
|
🇨🇳BYD
byd.com ↗
|
Shenzhen, CN | EV & battery manufacturer | 5,000 cells | 8–12 wks |