72S BMS 230.4V 100A Master Slave BMS lithium battery management system for lifepo4 battery pack
This integrated BMS is our best-selling product, and it's highly regarded for its excellent cost-performance ratio, making it the ultimate choice for small-capacity battery systems. It offers easy installation and user-friendly operation.
Communication protocol:
CAN, RS485, Dry Contact
* Design: Master & Slave all in one * Efficient, stable and reliable * size:W480*H370*D100cm
Unique Design
It is the latest product developed by GCE and it's unique in the market.
For 30S-75S Lithium Battery Packs
Integrated BMS supports 30S-75S lithium battery packs.
For 30S-75S Lithium Battery Packs
30s to 75s BMS adopts master-slave integrated design and relay solution to meet the lithium battery demand of multiple strings of small capacity batteries less than 100Ah. It greatly reduce the cost of users.
Product Name | Integrated BMS with case(master slave together in one) |
Model no. | RBMS08S70S100A-3 |
System operating voltage range | 120 - 370 VDC |
Startup mode | DC start |
Balance | Balance type | Passive resistance equalization |
| Balanced current | 100mA ± 10mA(When the Single cell reach 3.5V ) |
Temperature Sampling | Numbers | 12 Battery temperature(4*3) |
| Sampling accuracy | ± 2℃ |
Voltage Sampling | Sampling accuracy | Single cell ±20mV |
Short circuit protection | Support 6KA 20ms |
Communication mode | CAN: 1 channel (communication with PCs / UPS) RS485: 1 channel (communication with upper computer / PCS / UPS) |
Display mode | 6-digit LED indicators, including 1-digit fault indication, 1-digit running indication, 4-digit SOC power indication HMI display: optional 3.5 inches |
Rated current | 50A/100A (can be selected according to customer needs) |
Maximum overload capacity | 50A system transient: 70A/10S 100A system transient: 150A/10S |
Alarm level | 1 Level |
Protection level | two levels Level 1 cut off charge / discharge Level 2 Turn off the micro-break switch and power off the system |
Power consumption | ≤10W |
Weight | 7kg |
Pressure rating | 1800VDC 1mA 1min |
Safety certification | Compliant with CE certification standards |
operating temperature | -20~60℃ |
Operating Humidity Range | <90 RH(40℃±2℃) |




BMS COMPONENT SIZE AND INTERFACE
DESCRIPTION OF THE INTERFACE DIAGRAM OF THE BMS REVERSE SIDE:

Code | Description | Remark |
J1 | 1-15S voltage and temperature acquisition sockets | |
J2 | 16-30S voltage and temperature acquisition sockets | |
J3 | 31-45S voltage and temperature acquisition sockets | |
J4 | 46-60S voltage and temperature acquisition sockets | |
J5 | 61-75S voltage and temperature acquisition sockets | |
B+ | Connected to the the total positive of battery system | |
B- | Connected to the the total negative of battery system | |
P+ | Connected to the the total positive of inverter | |
P- | Connected to the the total negative of inverter | |
AC220V | AC power sockets | For AC startup (Note: that it must be connected to the UPS AC output terminal) |
1.It is high integrated with less installation space. 2.Long life cycle, >3000 times at 80% DOD. 3.It without heavy metals and environment friendly. 4.Maintenance free,there is no memory effect. 5.Internal BMS with full protection,battery has high voltage protection with higher reliability. 6. Master and Slave all in one.
◎ Home storage
◎ Island off-grid energy storage
◎ Micro-grid applications
◎ UPS power supply
◎ Power System 220V DC power supply
Company Profile
Hunan GCE Technology Co., Ltd.(GCE) is a high-tech company specializing in the R&D and production of BMS and battery energy storage systems for over 10 years. Our products are mainly used for industrial & commercial energy storage and home energy storage.
30s to 75s BMS adopts master-slave integrated design and relay solution to meet the lithium battery demand of multiple strings of small capacity batteries. Greatly reduce the use cost of users.
60s-405s adopts master-slave three-level architecture, which can meet the series and parallel requirements of high-capacity single lithium batteries within 1500V.
7.68KWh-40.96KWh Stackable Home Energy Storage System support 3-8 HV battery modules that are connected in sereis, with small volume, light weight, plug-in embedded design modules, Built-in smart BMS, easy to install and maintain.