BOMwiki the bill-of-materials encyclopedia
30,441,948 parts mapped · 192,925 items

This page is machine-generated and unverified (what this means). Treat details as provisional. If you know this hardware, weigh in or correct it directly with Edit.

Discussion History

Battery Management Master

Assembly

Computes state of charge, balances modules and controls contactors. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Battery Management Master parts and their functions

5 top-level parts · 226 parts in total · full bill of materials below
Battery Management Master parts diagram: 1 bare PCB, 2 microcontroller, 3 current sensor, 4 CAN transceiver, 5 SMD passive (R/C/L). 226 parts in 5 top-level items.
Battery Management Master parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Bare PCB 1× Unpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.
2 Microcontroller 2× Single-chip microcontroller combining a processor core, flash memory, RAM, and peripherals such as timers, ADCs, and serial ports to run the device's control firmware.
3 Current Sensor 1× Hall-effect or shunt-based sensor that measures the current in a conductor and reports it to the controller.
4 CAN Transceiver 2× Interface chip that converts a controller's logic signals to the differential CAN bus levels and back, letting control units talk to each other.
5 SMD Passive (R/C/L) 220× Surface-mount resistors, capacitors, and inductors, typically in 0402 to 1206 packages, that set voltages, filter noise, and time signals on a circuit board.

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Battery Management Master

5 top-level lines · 5 rows shown · 226 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Bare PCB pcb-bare 1× 1 · part
2 Microcontroller mcu 2× 2 · part
3 Current Sensor current-sensor 1× 1 · part
4 CAN Transceiver can-transceiver 2× 2 · part
5 SMD Passive (R/C/L) smd-passives 220× 220 · part

Where the battery management master is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Traction Battery Pack

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
VendorHQSpecialtyMOQLead time
🇨🇳CATL
catl.com ↗ 		Ningde, CN Li-ion cell & pack maker 5,000 cells 8–12 wks
🇨🇳EVE Energy
evebattery.com ↗ 		Huizhou, CN Li-ion cell maker 5,000 cells 8–12 wks
🇮🇳Amara Raja
amararaja.com ↗ 		Tirupati, IN Batteries & energy 5,000 cells 8–12 wks
🇸🇬Durapower
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