---
title: "Lithium Battery BMS for ESS"
description: "Explore Gerchamp’s 1500V lithium battery BMS for ESS, with BMU, RCU, SCU and MM10 modules plus UL and CE certification."
---

# G-BS

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G-BS

![Product image](https://www.gerchamp.com/media/i/5cc04c11-6af7-4876-a859-c20a2d6f0736/g-bs-g-bs-for-ess-bms.webp)

G-BS

G-BS for ESS comprises 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 energy storage systems up to 1500V and is certified to UL and CE standards. Explore Gerchamp’s high-voltage lithium battery BMS solution and contact us today to find out how we can support your energy storage needs.

Key Features

| Technical Parameter | Value / Details |
| --- | --- |
| 3+1-Level Structure | MM10 module; SCU module; RCU module; BMU module. |
| Online Programme Upgrade | Supports direct connection of a USB flash drive to the SCU module for upgrades; supports EMS upgrades through the SCU module via host computer. |
| Supports Bidirectional IO Ports to Achieve Automatic Address Coding | The BMU module supports two-way bidirectional IO ports to send/receive instructions; all BMUs in a single cluster can be automatically encoded, and the IO ports support bidirectional blind insertion. |
| Multi-port Environment Supervision Device Data Access | SCU modules support 3-channel isolated CAN communication, 3-channel LAN communication, 3-channel RS485 communication and 1-channel RS232 communication. Ports are reserved to fully meet access requirements for other devices across the entire ESS. |

Technical Parameters

Product Specifications

Complete technical data for the G-BS Battery Management System.

| Parameter | Result |
|---|---|
| Cell Voltage | Cell Temperature / Cell Equalisation |
| Range | 0~5V / Range / -40~125℃ / Current / 100mA/3.3V |
| Resolution | 1mV / Resolution / 0.1℃ / Equalisation 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 |
| Electrical isolation | 3820Vdc / Electrical isolation / 3820Vdc / Electrical isolation / 3820Vdc / Electrical isolation / 3820Vdc |
| Supported protocol | Modbus / Supported protocol / Modbus / Supported protocol / Modbus / Supported protocol / Internet protocol |

Scroll to view all parameters

Architecture

System Architecture

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

![G-BS System Topology](/media/i/ce09c352-5c0b-456c-ab84-59de5608e19e/g-bs-g-bs-for-ess-973-33x402-kao-bei.webp)

### Related Content

#### Related Solutions

- [Utility-Scale BESS](https://www.gerchamp.com/en-GB/solutions/utility-scale-bess) ([Agent MD](https://www.gerchamp.com/en-GB/solutions/utility-scale-bess/raw.md)) - Safety, efficiency and battery lifespan remain core industry challenges for utility-scale energy storage.
- [Commercial & Industrial ESS](https://www.gerchamp.com/en-GB/solutions/commercial-industrial-ess) ([Agent MD](https://www.gerchamp.com/en-GB/solutions/commercial-industrial-ess/raw.md)) - Faced with rising energy costs and grid stability challenges, commercial and industrial users.

#### Related Documents & Downloads

- [G-BS-Leaflet-A1.pdf](/media/d/g-bs-leaflet-a1.pdf) - 


Related Content

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