MAXKGO 6S-12S 200A Smart BMS Lithium Battery Protection Board For E-scooter / E-car / E-bike / E-skateboard

MAXKGO-SS BMS is a full-featured battery protection board for electric vehicles, light electric vehicles, and electric skateboards. It is an intelligent mini BMS that integrates charging protection, discharge protection, overcurrent protection, temperature protection, and balance protection.（The factory default setting is 12S. If you need to change it, please modify it yourself.）

Firmware & software repositories are available click here： MAXKGO

Tutorial on MAXKGO BMS settings with VESC

Applicable battery voltage

• Recommended Battery: 6S-12S
• Operating Voltage Range per Cell: 2V-5V

Charging

• Charging Voltage: 24V-52V
• Charging Current: ≤50A
• Maximum Supported Charging Voltage: 60V
• Minimum Supported Charging Voltage: 14V

Overcharge Protection

• Overcharge Detection Voltage: 2V-5V
• Overcharge Protection Delay: ≥4ms
• Overcharge Release Voltage: 2V-5V

Discharging

• Discharge Current: ≤200A
• Overcurrent Protection for Discharge: ≤200A
• Discharge Voltage: 24V-52V

Overdischarge Protection

• Overdischarge Detection Voltage: 0-5V
• Overdischarge Release Voltage: 0-5V

Overcurrent Protection

• Overcurrent Protection Delay for Discharge: ≥4ms
• Overcurrent Protection Release Condition: Load Disconnect

Short Circuit Protection

• Short Circuit Protection Condition: External Load Short Circuit
• Short Circuit Detection Delay: 320µs
• Short Circuit Protection Release Condition: Load Disconnect

Balancing Current: 86mA @4.2V

Temperature Protection

• Temperature Protection: -20℃ to +120℃

Operating Temperature

• Operating Temperature Range: -20℃ to +80℃

Storage Temperature

• Storage Temperature Range: -20℃ to +100℃

Self-Consumption

• Operating Current: ≤40mA
• Sleep Current: ≤100µA
  

BMS  Details

• Includes: Overcharge Protection, Overdischarge Protection, Overcurrent Protection, Temperature Protection, Battery Capacity Detection, Battery Internal Resistance Detection, Thermal Management, Balancing Function
• Balancing Method: Active Balancing and Passive Balancing
• Short Circuit Protection: External Load Short Circuit
• Short Circuit Protection Recovery: Load Disconnect
• Battery Support: Supports nearly all lithium batteries including Li-ion, Li-polymer, LiFePO4, etc.

BMS Edge

• Compact layout, ultra-mini size.
• Automotive-grade monitoring and balancing IC with independent power supply for enhanced reliability.
• Voltage detection of load, charger, and battery pack.
• Bidirectional current monitoring.
• SOC based on Coulomb counting.
• Humidity sensor and circuit board temperature monitoring.
• Charger circuit detection capability.
• Integrated pre-charge circuit.
• Features power button, USB-Type C, UART, I2C, and isolated CAN bus interfaces.
• Onboard efficient 3.3V regulator powered by the main battery pack.
• Uses high-current capacity automotive-grade screw connectors for main power connection.
• Includes buzzer and LED display.
• Aluminum alloy shell for improved heat dissipation.
• Automotive-grade locking mechanism with reverse interlock to ensure secure connections.
• Compatible with MAXKGO-BMS-TOOL and ENNOID-BMS-TOOL.

BMS Safety Features

• Configurable under-temperature and over-temperature cutoff for charging and discharging.
• Configurable under/over battery voltage cutoff.
• Configurable overcurrent cutoff.
• Configurable minimum pre-charge value.
• High-side load and charger disconnect.
• Transient voltage suppression on all inputs.
• Secondary fuse on all balance channels, USB ports, and power supplies.

Package include：

• 1* PCB board
• 1* HY2.0 single-end 10-pin wire
• 1* HY2.0 single-end 13-pin wire
• 2* GH1.25 single-end 5-pin wire
• 1* GH1.25-5P to DuPont wire adapter
• 1* USB cable, Type-C data cable
• 1* 2.0MM jumper cap
• 1* 1.3-inch OLED display LCD module
• 1* 12MM 3-6V push-button switch
• 4* M5*8 stainless steel round head screws
• 2* M5*12 stainless steel round head screws
• 2* M5 copper nuts
• 6* M5 purple copper washers
• 6* 90-degree angled wire terminals T90-6/5 (purple copper)
• 2* fuses

Video: