Q40 MotorsportsEnter Garage
Log inMEMBER PRICING

Find parts for your vehicle

Start with what you know.All parts
Saved vehicles
Vehicle details

No additional reviewed details

Ready to see available parts

No additional reviewed details are available for this selection. Add make, model or year to refine the results. Check each product’s application before ordering.

Choose make

Choices use the other selected filters. You can also enter a value directly.

Home / Tuning & Gauges / EV Controllers / AEM EV Unsealed Battery Management System Satellite Module for VCU
AEM EV Unsealed Battery Management System Satellite Module for VCU
Image availability does not confirm fitment or availability.
AEM

AEM EV Unsealed Battery Management System Satellite Module for VCU

PART 30-8408CATEGORY EV Controllers
$233.96
MSRP $292.95You save $58.99
$233.96
1

Product information

Manufacturer information. Check the part number and installation requirements for your vehicle.

Supplier details checked 2026-09-23 · Test catalog

Product description

Unsealed Battery Management System Satellite

Unsealed BMS Satellite Module for VCU

Features

Unsealed Satellite Modules allow additional units to be daisy chained together to support numerous battery pack configurations

Low Profile 90 degree connector allows for ease of packaging and service when installed into a sealed battery pack

Unsealed Satellite Modules are connected to their Master via a high-speed serial interface (isoSPI)

Unsealed Satellite Modules allows for custom Battery Packs and integration into a sealed module

Unsealed Satellite modules are Intended for installations into sealed custom battery packs

Manufacturer notes

NOTE: The Unsealed BMS Satellite must be used with an AEM Vehicle Control Unit (VCU) and a BMS Master.

Supplier category
Programmers & Chips
Supplier subcategory
EV Controllers
UPC / barcode
810065218650
Units per product
1
Supplier Proposition 65 status
Unknown
Supplier EPA status
N/A
Air freight prohibited
No
Not CARB approved
Yes
CARB acknowledgement required
No
Freight delivery required
No
Powersports product
No

Manuals and documents

More manufacturer information

Other product descriptions

AEM EV Unsealed Battery Management System Satellite Module for VCU

Unsealed BMS Satellite Module

Unsealed Battery

About the manufacturer

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 Master

1. VCU

Additional manufacturer information

AEMEEVBATT

Explore the 3D garage

Chevrolet Corvette C8 · Subaru WRX VA · Mazda Miata NA · Ford Mustang S197 · BMW 3 Series E46 · Honda S2000 AP1 · BMW M3 E30 · Honda Civic 11th generation · Audi S4 B5 · Ford Mustang S550 · BMW M3 E46 · Chevrolet Corvette C6 · Chevrolet Camaro 5th generation · BMW M3 E36 · Chevrolet Corvette C7 · Integra 3rd gen · Integra 2nd gen · Illustrative previews

Enter Garage
AEM EV Unsealed Battery Management System Satellite Module for VCU | Q40 Motorsports