How do I connect multiple Satellite modules?

You can connect multiple BMS-18 Satellite modules by daisy-chaining them together using the high-speed isoSPI serial interface. This allows you to expand your battery management system to accommodate larger battery pack configurations.

What is the role of the VCU in this system?

The VCU (Vehicle Control Unit) is responsible for all the control logic for the Battery Management System. It works in conjunction with the Master and Satellite modules to manage your battery pack's performance and safety.

Can this module be shipped to California?

No, this module is not CARB approved and cannot be shipped to California.

AEM 30-8408 EV BMS Satellite Module

Name: AEM EV Unsealed Battery Management System Satellite Module for VCU
Brand: AEM
SKU: aem-aem-ev-unsealed-battery-management-system-satellite-module-for-vcu-t14-702054
Price: 265.37 USD
Availability: BackOrder

AEM EV Unsealed Battery Management System Satellite Module for VCU

$265.37

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Expands your AEM EV Battery Management System by 18 cells and 3 thermistors per module. Connects via high-speed serial interface.

Key Features

Expands BMS capability by 18 cells — allows for larger battery configurations.
Monitors up to 3 additional thermistors per module — for precise temperature tracking.
High-speed isoSPI serial interface — enables easy daisy-chaining of multiple modules.
Works with AEM VCU and BMS-18 Master — integrates seamlessly into the AEM EV system.
Adjustable setup and calibration via AEMCal user interface — offers full control over battery management.

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Product Details

The VCU communicates with the BMS via the Master Module and all battery packs need at least one Master unit. The Satellites expand the capability of the Master by an additional 18 cells and 3 thermistors per additional Satellite connected. The Satellite Modules are connected to their Master via a high-speed serial interface (isoSPI) that allows additional units to be daisy chained together, adding as many Satellites as necessary for the battery pack configuration.The BMS is implemented as two different Module types: the BMS Master and the BMS Satellite. Each Module is capable of measuring up to 18 cells and 3 temperatures (thermistors) but the Master also contains the CAN communication interface and J1772 charging specific connections needed for each battery pack.The VCU is responsible for all BMS control logic. All setup and calibration items can be modified using the AEMCal user interface.The AEM EV Battery Management System (BMS-18) is comprised of three components:3. BMS-18 Satellite(s)2. BMS-18 Master1. VCU