High Voltage Battery Management System

Monitor up to 396 cells with our fully scalable distributed BMS architecture. With our Cell Supervisory Circuits (CSCs) connect your cells in 12S increments up to your desired voltage. Safely and reliably control and monitor your pack with contactors, high side drives, discrete inputs, and multiple communication options. Monitor your battery with the E1 Battery Assistant. Simply connect the Master BMS (MBMS) via USB to monitor, control and customize the system to your needs.

Key Features

  • ✺

    Contactor Control

    Up to 5x contactors for high side, low side, pre-charge, and auxiliary control.

  • ✺

    Controller Area Network (CAN)

    Communicate to various ECUs on the CAN bus.

  • ✺

    Conditioning

    Conditioning your battery to an optimal temperature with heating and cooling control.

  • ✺

    Auxiliary I/O

    Control accessories with up to 9x 12V inputs/outputs.

  • ✺

    HVIL Monitoring

    Monitor the high voltage interlock loop.

  • ✺

    Isolation Detection

    Monitor high voltage isolation to keep the battery safe.

E1 Battery Assistant

Use the E1 Battery Assistant to monitor, Customize and debug your battery in real-time. Our user interface features a wide array of options from EOL settings to set manufacturing data and finalize your battery before delivery, to logging data when performing battery tests. Simply connect our BMS via USB and open the app. Contact us using the link below to get access to our app.

  • Monitor

    Monitor voltages, current, faults, warnings, I/O and more with our E1 Battery Assistant. See live battery data with a simple USB connection.

  • Customize

    Write manufacturing data such as serial number, part number and manufacture date at EOL. Need more data? Contact us for a customize solution.

  • Troubleshoot

    Need to analyze historical data? Checkout the log file or the live graphs of the incoming data from the battery to troubleshoot battery behavior.

Contact Us

Reliability & Safety Approach

Monitor up to 276 cells with our distributed BMS architecture. Our Cell Supervisory Circuit, CSCs, connect to your battery modules and communicate to the MBMS. The Master BMS (MBMS) provides necessary battery data and control to the external system.

STATE OF CHARGE

TEMPERATURE
MANAGEMENT

FAULT
DETECTION

CELL
BALANCING

2024 BMS LIMITED OFFER

2024 BMS LIMITED OFFER

SIGN UP FOR OUR BMS BEFORE Q2 TO RECEIVE SPECIAL BENEFITS:

  • DISCOUNTS ON NRE

  • EXPEDITED INTEGRATION

  • FUNCTIONAL SAFETY DEAL

✺ Frequently asked questions ✺

  • Our BMS is cell-chemistry agnostic, including but not limited to: NMC, NCA, and LFP.

  • We’ve worked with the University of Michigan to develop highly accurate algorithms and can customize the approach depending upon your needs.

  • Our technology has been developed using years of experience across multiple Tier 1 suppliers & OEMS. Our product is also currently in high-volume production with zero product failures.

  • We have developed our BMS to be configurable across many applications but can also customize based upon your requirements

  • This is highly dependent upon you specifications, but we can scale up or down to meet the timeline requirements for almost any project.

  • E1’s products are proudly MADE IN USA.