BMS for Lithium Batteries, Battery
G-BS
G-BS for ESS consists of a battery pack management unit (BMU module), battery cluster management unit (RCU module), system management unit (SCU module) and system display management unit (MM10 module). This lithium battery management system supports a maximum of 1500V energy storage system, and is certificated with UL, CE standards. Explore Gerchamp’s High voltage lithium battery BMS solution and contact us today to find out how we can help your energy storage needs.
Key Features:
- 3+1 Level Structure: MM10 module; SCU module; RCU module; BMU module.
- Online Program Upgrade: Support direct connection of USB flash disk to SCU module to upgrade ; Support EMS upgrade through SCU module via host computer.
- Support Bidirectional IO Ports to Achieve Automatic Address Coding: The BMU module supports 2-way bidirectional l0 ports to send/receive instructions, all BMUs in a single cluster can be automatically encoded and the lO ports can support bidirectional blind insertion.
- Multi-ports Environment Supervision Devices Data Access: SCU modules support 3-channel isolated CAN communication, 3-channel LANcommunication,3-channel RS485 communication,1-channel RS232 communication Ports are reserved for to fully meet the access of other devices in the entire ESS.

Architecture
System Architecture
G-BS ESS battery management topology — GSCU controller connects GHV Box and GRCU units managing battery clusters via CAN bus to PCS, EMS, and auxiliary systems.

Technical Parameters
Product Specifications
Complete technical data for the G-BS Battery Management System.
| Parameter | Result |
|---|---|
| Cell Voltage | Cell Temperature / Cell Equal Ization |
| Range | 0~5V / Range / -40~125℃ / Current / 100mA/3.3V |
| Resolution | 1mv / Resolution / 0.1℃ / Equalization resistance / 33Ω |
| Accuracy | ≤5mv / Accuracy / ≤1℃ / / / / |
| Cycle | 100ms / Cycle / 200ms / / / / |
| Channel | 4~24 strings / Channel / 0~12 / / / / |
| Total Voltage | Total Current / Insulation Monitoring / soc / SOH |
| Range | 0~1500V / Range / -500~500A / Range / 0~50MQ / Range / 0~100% / Range / 0~100% |
| Resolution | 0.1V / Resolution / 0.1A / Resolution / 0.1KΩ / Resolution / 1% / Resolution / 1% |
| Accuracy | <1000V(1%FS) ≥1000V(0.5%) / Accuracy / <1%FS / Accuracy / <3%(500~1500V and>600KΩ) / Accuracy / <±5% / Accuracy / <±8% |
| Cycle | 100ms / Cycle / 50ms / Cycle / 8S / / / / |
| Channel | Total positive/ precharge / Channel / Large/small range/CAN / Channel / Total positive/total negative to pack case / / |
| Ethernet | RS485 / RS232 / CAN |
| Channel Qty | 3-channel / Channel Qty / 4-channel / Channel Qty / 1-channel / Channel Qty / 2-channel |
| Communication rate | 10M/100M / Communication rate / 9600bps / Communication rate / 9600bps / Communication rate / 250Kbps |
| Electricalisolation | 3820Vdc / Electricalisolation / 3820Vdc / Electricalisolation / 3820Vdc / Electricalisolation / 3820Vdc |
| Support protocol | Modbus / Support protocol / Modbus / Support protocol / Modbus / Support protocol / Internet protocol |
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