Video: Only Charge Board does not support discharge protection, please do not discharge through this protection board. Specs: Type: Charge only Cell Chemistry: Li-ion (3.7V nominal) Balance method: Passive balance Series Count: 4S-24S Charge Current: 20A Overcharge Voltage: 4.25V Overcharge Reset: 4.19V Balance: 30-50mA@4.2V Overtemperature: 60°C Overtemperature Reset: 40°C Size: 110*30*11mm Net weight: 30g Package Included: 1* MKBMS 4S-24S 20A Only Charge Board 1* GH2.0 single head 12P line 1* GH2.0 single head 13P line 1* HY2.0 single head 2P cable with thermal protection switch 1* Charging cable with XT60 or XT30 connectors

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MKBMS is based on the modular BMS of LTC68XX and STM32 MCU, and is connected to one or more slave boards and integrated integrated boards of different sizes through the ISOSPI interface. The modular BMS can be configured for various applications with battery voltages within 150V. MKBMS Master Board ( MKBMS-LV Master Mini ) Features: With charger voltage measurement, humidity sensor, isolated on-board 5V power supply for isolating CAN bus interface and USB Type-C 17V to 150V operation Voltages measurements for load & battery pack Bi-directional current monitoring (up to 2500A pulsed, 500A continuous) Isolated charger detection circuit Isolated CAN bus interface Daisychain Master/Slave ISOSPI communication Single PCB pattern for bolt-on contactor It can internal power supply or external power supply voltage is 12V Integrated predischarge circuit USB & serial interface for configuring and firmware upgrades with the ENNOID-BMS-Tool OLED display output ON/OFF toggle switch input SWD burn debugging or update firmware interface   MKBMS Slave Board Features: MKBMS slave board is made of aluminum base plate, which has better heat dissipation effect. Scalable & isolated 1000VDC+ Compatible with MKBMS Master boards From 5 to 18 cell levels monitoring per board Daisychain Master/Slave ISOSPI communication Parameters fully programmable through an easy to use graphical user interface 33 ohm balance resistors (0.125A capacity) on all channels Self powered by monitored cells 1.2mV accuracy, -40 to 120C operation Extra low power consumption (Sleep mode = 6uA) Molex SL horizontal connectors for balance & temperature. (Comes with male, female + crimps)       Variant:      LTC6811 : Up to 12 series-connected battery cells & 1+4 temperature sensors* per slave      LTC6812 : Up to 15 series-connected battery cells & 1+8 temperature sensors* per slave      LTC6813 : Up to 18 series-connected battery cells & 1+8 temperature sensors* per slave      *The first temperature channel is used by slave board itself. The following 4 or 8 temperature sensors are not in the package lists but means an interface to connect 4 temp sensors at most or to connect 8 temp sensors at most. *For uneven cell count in series, only the last slave board in the daisy-chained loop should have one cell less connected than the other slaves. Ex: 39S = 10S + 10S + 10S + 9S MKBMS battery management system implements the following functions: 1. Current and voltage protection: protect the battery pack from overcharge and overdischarge, thereby extending the cycle life. 2. Battery health monitoring: monitor the internal resistance of a single battery and the monitoring capacity of the battery pack. 3. Thermal management: Overheating and under-temperature protection. 4. Support batteries: Li-Ion, Li-Polymer, Li-Phosphate 5. Intelligent battery balance: passive balance  6. Field programmable 7. Current limit calculation 8. Fully programmable CANBUS interface, programmable structure of all CAN messages 9. Drift state of charge 10. Reliability, speed and accuracy 11. Integration with other devices 12. Multiple BMS units connected in series 13. Current sensor support 14. Isolation from fault detection 15. Automotive grade design, automotive grade locking connector 16. Software for data logging and programming MKBMS can be roughly divided into three aspects: automobile, industry, and consumption: 1.  Electric vehicles;2.  Electric patrol car;3.  Scenic sightseeing car;4.  Handling robots;5.  Automatic forklift;6.  Electric bicycles;7.  Electric skateboard;8.  Electric tools;9.  Consumer robots, etc. Video: Shipping list: MKBMS-LV Master Mini Package 1X   PCBA board MKBMS-LV Master Mini V1.4 2X   GH1.25 single head 2P line 1X   GH1.25 double head 2P same direction line 3X   HY2.0 single head 2P line 2X   GH1.25 single head 5P line 1X   GH1.25-5P to Dupont line 1X   USB cable type-C data cable 1X   2.0MM jumper cap 1X   1.3 inch OLED display LCD screen module 1X  12MM 3-6V button switch   LTC6811-12S Package 1X   PCBA board LTC6811-12W-AL V1.2 slave board 1X  GH1.25 double head 2P red-black line (for master board)   1X  GH1.25 double head 2P black-white line (for slave board) 1X   HY2.0 single head 5P line 1X   HY2.0 single head 13P line 4X   Nylon column 4X   Nylon nut     LTC6813-18S  Package 1X PCBA board LTC6813-18S V1.4 slave board 1X  GH1.25 double head 2P red-black line (for master board)   1X  GH1.25 double head 2P black-white line (for slave board) 1X HY2.0 single head 6P line 1X HY2.0 single head 13P line 1X HY2.0 single head 16P line 4X nylon column 4X nylon nut   LTC6812-15S  Package—— 1X   PCBA board LTC6812-15S slave board 1X  GH1.25 double head 2P red-black line (for master board)   1X  GH1.25 double head 2P black-white line (for slave board) 2X   HY2.0 single head 8P line 1X   HY2.0 single head 16P line 4X   Nylon column 4X   Nylon nut    MKBMS hardware design file: LTC6811-12W_V1.2 MKBMS-LV_Master_Mini_V1.4

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Click it MINI V6.8 Specifications :  Firmware:  vesc_tool_3.00 5.2 (supporting firmware upgrade) Continuous current: 100A; instantaneous current: 150A (values depend on the mounting and ambient temperature around the device!) Voltage: 14V-60V(Cells: 4-13S; safe for 4S-12S, voltage spikes may not exceed 60V! )  BEC: 5V@1.5A; ERPM: 150000 Support Hall Sensor: No, Sensorless Supported Modes: BLDC, FOC (sinusoidal) Control Interface Ports: USB, CAN, UART, IIC Input Set Support: PPM, ADC, NRF, UART Regenerative capacity: Yes Programmable: Yes Motor wire: 10AWG; Power cable: 8AWG Size: 64x43.5x34.7mm(Including heatsink) Features: Based on vesc6, programmable via VESC_TOOL and support real-time data read. Adopting CPU STM32F405 with the structure of ARM Cortex-M4 allows CPU clock speed.  Support three control modes: Current / Dutycycle / Speed. Protection functions: low voltage protection, high voltage protection, over-current protection, temperature abnormally protection, mosfets over-temperature protection. Support the function of balancing car by connecting the IMU module through the IIC interface; support inertial measurement unit modules such as MPU9250, MPU9150, MPU6050, LSM6DS3, BMI160 Wiring diagram: MINI V6.8 Plus Specifications :  Firmware: 5.2 (supporting firmware upgrade) Continuous current: 150A; instantaneous current: 200A (values depend on the mounting and ambient temperature around the device!) Voltage: 14V-60V ( Cells: 4-13S; safe for 4S to 12S, voltage spikes may not exceed 60V! ) BEC: 5V@1.5A; ERPM: 150000 Supported sensors: ABI, HALL,AS5047,AS5048A Supported Modes: BLDC, FOC (sinusoidal) Control Interface Ports: USB, CAN, UART, IIC Input Set Support: PPM, ADC, NRF, UART Regenerative capacity: Yes Programmable: Yes Power Wire: 8.0mm bullets female X 2pcs Motor Wire: 8.0mm bullets female X 3pcs Size: 92.7x68x31.5mm(Including aluminum case) Features: 1) Based on vesc6, programmable via VESC_TOOL and support real-time data read. 2) Adopting CPU STM32F405 with the structure of ARM Cortex-M4 allows CPU clock speed. 3) Support four control modes: Current / Dutycycle / Speed 4) Protection functions: low voltage protection, high voltage protection, over-current protection, temperature abnormally protection, mosfets over-temperature protection. 5) Support the function of balancing car by connecting the IMU module through the IIC interface; support inertial measurement unit modules such as MPU9250, MPU9150, MPU6050, LSM6DS3, BMI160 Wiring diagram:  

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Product Description-- Charging current: <60A Discharge current: < 150A Internal resistance: ≤15mΩ   Charging voltage: The number of Li-ion battery in series connection X 4.2VWiring : same port or different ports（When using the charging and discharging same port, disconnect the p-）   Overcharge protection—— Detection voltage: 4.25±0.025V Detection delay: 1000±500MS Release voltage: 4.15±0.05V   Over-discharge voltage protection—— Detection voltage: 2.75±0.1V Detection delay: 1000±500MS Release voltage: 3.0±0.1V   Balanced voltage—— Detection voltage: 4.15±0.025V Detection delay: 100±50MS Balance current: 42±5MA   Over discharge current protection—— Detection voltage: 50±15MV Detection delay: 1000±500MS Current protection: 300±50A 450±50A 600±60A   Short circuit protection-- Trigger condition: external short circuit Detection delay: 300us Release condition: disconnect the load   Temperature control protection—— Charge and discharge over-temperature protection: 55℃ Charge and discharge high temperature release temperature: 75℃ Release condition:During normal working temperature          Self-consumption—— Working power consumption: <35UA Over-discharge power consumption(Sleeping State): <10UA Operating temperature range: -30°~+80°C   Product Features-- Overcharge protection Over discharge protection Over current protection Balanced protection Temperature control protection Applicable for 8-14S battery   Size:121*50*12.8mm Net weight:244g Weight: 331.5g   Package: 1* PCBA board 1*HY2.0 single head 15P line   Wiring diagram  

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MKBMS is developed based on the open source materials of DieBieMS and ENNOID BMS. Currently MKBMS is compatible with ENNOID firmware. Here, a special thanks to the developers of open source BMS materials. Maybe you need more MKBMS options: https://bit.ly/3xR2DJS MKBMS Slave Board Features: MKBMS slave board is made of aluminum base plate, which has better heat dissipation effect. Scalable & isolated 1000VDC+ Compatible with MKBMS Master boards From 5 to 18 series-connected battery cells per board Daisychain Master/Slave ISOSPI communication Parameters fully programmable through an easy to use graphical user interface 33 ohm balance resistors (0.125A capacity) on all channels Self powered by monitored cells 1.2mV accuracy, -40 to 120C operation Extra low power consumption (Sleep mode = 6uA) Molex SL horizontal connectors for balance & temperature. (Comes with male, female + crimps)       Variant:            LTC6813 : Up to 18 cells voltage monitoring & 1+8 temperature sensors* per slave      *The first temperature channel is used by slave board itself. The following 4 or 8 temperature sensors are not in the package lists but means an interface to connect 8 temp sensors at most.    MKBMS can be roughly divided into three aspects: automobile, industry, and consumption: 1.  Electric vehicles;2.  Electric patrol car;3.  Scenic sightseeing car;4.  Handling robots;5.  Automatic forklift;6.  Electric bicycles;7.  Electric skateboard;8.  Electric tools;9.  Consumer robots, etc.   LTC6813-18S  Package 1X PCBA board LTC6813-18S V1.4 slave board 1X  GH1.25 double head 2P red-black line (for master board)   1X  GH1.25 double head 2P black-white line (for slave board) 1X HY2.0 single head 6P line 1X HY2.0 single head 13P line 1X HY2.0 single head 16P line 4X nylon column 4X nylon nut

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