Battery Management System
ENNOID-BMS-SS is a full-featured BMS oriented toward Light Electric Vehicles.
Thanks to the Open-Source nature of ENNOID-BMS, customers can contribute to the project and adapt the BMS to their needs. Firmware & software repositories are available on our Github page.
Automotive grade monitoring & balancing IC with separate power supply for increased reliability
High-side charge, pre-discharge & charge switches
12S, 15S, 18S & 24S board options
Voltages measurements for load, charger & battery pack
Bi-directional current monitoring
SOC based on coulomb counting
Humidity sensor & board temperature monitoring
Charger detection circuit
Integrated pre-discharge circuit
Power button, USB-C, UART, I2C & isolated CAN bus interface
Configuring and firmware upgrades over USB through the ENNOID-BMS tool or VESC-Tool
On board High-Efficiency 3.3V regulator powered from the main battery pack
JST PH 2.0mm connectors
High current capacity automotive grade screw connectors for main power connections
Buzzer & status LED
NEW feature for 2022:
VESC & VESC-tool CAN & USB compatibility for firmware updates, data monitoring & parameters configuration
On-Board main fuse (50A to 150A BF1)
Configurable under/over temperature cutoffs for charge & discharge
Configurable under/over cell voltage cutoffs
Configurable over current cutoff
Configurable minimum pre-discharge value
Secondary fusing on all balance channels, USB port & power supply
**Boards are sold without accessories. Please buy the appropriate accessories for your own particular needs.
24S version : Shipping now
18S version: Shipping now, without a CAN-bus IC
15S version is out of stock due to the global part shortage.
12S version, will be available eventually, sorry for the long delay
*(HD version with dual sided optional FETs)
**The documentation pointed to could be outdated due to the constant evolution of the firmware data sets. The basis for UART & CAN implementation will stay valid despite firmware updates. You can refer to the official firmware source code for accurate data sets.
Communication related files subject to incremental changes between firmware updates:
Foundation source code used for communication: