BMS System
Battery Management Systems (BMS) are the brains of Lithium-Ion battery packs, providing critical safeguards to protect Lithium-Ion batteries from damage.
Our patented BMS systems manage charging, discharging, and output controls. They also provide the status of the Lithium-Ion battery pack, as well as each individual battery cell.
Additional functions of our BMS system include voltage monitoring of individual cells, temperature monitoring, pack current measurement, state of charge (SOC) calculation, alarm interlocks to prevent over-charging and over-discharging, over and under-temperature controls, over-current protection, and cell balancing.
For communication and data integration, CANbus and/or MODbus is available. Our Gen 2 and Gen 3 BMS systems add WiFi connectivity, smartphone apps, as well as remote data access through a cloud database.
The Gen 2 BMS system is certified as UL Recognized component per the UL 2580 standard. Gen 1 and Gen 2 systems us a distributed architecture, utilizing a sense board on each cell.
Our Gen 3 BMS systems add to the functionality of the Gen 2 systems by offering support for latching relays and contactor verification, extending run time and enhancing operational safety. The Gen 3 BMS also reduces cost for system integrators by eliminating the need for a separate sense board on each cell.
Our Gen 3 systems have been certified as a UL Listed Component to both UL1973 and UL2580.
The following table provides a brief comparison of our available BMS systems:
BMS Generation | Gen 1 | Gen 2 | Gen 3 |
---|---|---|---|
Architecture | Distributed | Distributed | Centralized |
Boot Time | <1 Sec | ~ 40 Sec | ~ 2 Sec |
Safety Certificate | -- | UL 2580 | UL 1973: UL 2580 |
Maximum Voltage | 250 | 500 | 100 |
Latching Contactor Support | No | No | Yes |
Contactor Verification | No | No | Yes |
Bluetooth | No | Yes | Yes |
WiFi and Cloud | No | Yes | Yes |
Canbus | Optional | Yes | Yes |
Part Numbers | EMSCPU/EMSCPU-CANB | EMS2.7 | EMS3A/EMS3B |
For OEM inquiries, including custom design or integration, please Contact Us Directly.
For retail purchases, please Contact Our Distributors.
Last updated on 1/15/2025