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 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/3EQO9Nt  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 30V 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 (LTC6811-12W-AL) 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 cells voltage monitoring & 1+4 temperature sensors* per slave       LTC6812 : Up to 15 cells voltage monitoring & 1+8 temperature sensors* per slave      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 4 temp sensors at most or to connect 8 temp sensors at most. Pack configuration examples: MKBMS monitoring 23S pack : 2 x LTC6811-12S : 12S + 11S ( Optimal)2 x LTC6812-15S : 12S + 11S (Two slaves partially loaded)2 x LTC6813-18S : 12S + 11S (Two slaves partially loaded) MKBMS monitoring 27S pack : 3 x LTC6811-12S: 9S + 9S + 9S (Three slaves partially loaded)2 x LTC6812-15S: 14S + 13S (Optimal)2 x LTC6813-18S: 14S + 13S (Two slaves partially loaded) MKBMS monitoring 29S pack : 3 x LTC6811-12S: 10S + 10S + 9S (Three slaves partially loaded)2 x LTC6812-15S: 15S + 14S ( Optimal)2 x LTC6813-18S: 15S + 14S (Two slaves partially loaded) MKBMS monitoring 30S pack : 3 x LTC6811-12S: 10S + 10S + 10S (Three slaves partially loaded)2 x LTC6812-15S: 15S + 15S ( Optimal)2 x LTC6813-18S: 15S + 15S (Two slaves partially loaded) MKBMS monitoring 35S pack : 3 x LTC6811-12S: 12S+12S+11S (Good)3 x LTC6812-15S: 12S+12S+11S (Three slaves partially loaded)2 x LTC6813-18S: 18S + 17S (Optimal choice) *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. Shipping list: MKBMS Master Board + Slave Board 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 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   MKBMS hardware design file: LTC6811-12W_V1.2 MKBMS-LV_Master_Mini_V1.4

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Specifications: Voltage:14-84V( safe for 3-20S) Continuous Current : 50V/350A,75V/250A Max Current :800A Supported sensors: ABI, HALL, AS5047,AS5048A EPRM:150000 Size:200*94.6*50mm((Including the height of water pipes and electrolytic capacitors) Warm tips: Phase filering is not available for Flipsky ESC75100 and 75200 ! Please turn off the phase filter function and choose "false" in vesc_tool when use firmware version on or above 5.3 (VESC_TOOL 3.01). Without turning off the phase filter will result in esc damage. Please do not restore the default parameters when using the wizard interface. Feature: 1.Regenerative braking 2.The CPU adopts the 32F405 with the main frequency of 168MHz and the Cortex-M4 architecture with DSP function; 3.Sensored or sensorless operation + hybrid mode 4.Configurable RPM-, current-, voltage- and power limits 5.Input source: PPM, ADC, NRF,UART,PAS 6.Communication ports: USB, CAN, UART,SPI,IIC 7.Throttle curve and ramping for all input sources 8.Seamless 4-quadrant operation 9.Motor revolution, ampere hour, watt hour counting 10.Real-time data analysis and readout through the communication port. 11.Adjustable protection against: 12.Low input voltage 13.High input voltage 14.High motor current 15.High input current 16.High regenerative braking current (separate limits for the motor and the input) 17.High RPM (separate limits for each direction) 18.Digital VCC and analog VCC are produced by different voltage regulators respectively to make the system AD conversion more accurate. 19.Motor wire: 8AWG 20.Power cable: 8AWG 21.Waterproof level(with water cooling enclosure):IP67 Wire Connection:

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Speciation: Size:L107mm*W103mm*H18.5mmVoltage:14-84V (4-20S safey)Current:continuous max 100A single,dual continuous max 200A,values depend on the mounting  and ambient temperature around the device!BEC:5V@1ASupport BLDC square wave mode control and FOC sine wave modeFirmware: latest (firmware update supported)ERPM:150000Control Interface Ports:USB,CAN,UARTSupported Sensors:ABI，HALL，AS5047，AS5048AInput Set Support:PPM，ADC，NRF,UARTWire Size: 12AWGProgrammable: YesRegenerative Capacity: Yes Warm tips: Phase filering is not available for Flipsky ESC75100 and 75200!Please turn off the phase filter function and choose "false" in vesc_tool when use firmware version on or above 5.3 (VESC_TOOL 3.01). Without turning off the phase filter will result in esc damage. Please do not restore the default parameters when using the wizard interface. Wire Connection:

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Specifications :  Firmware: V1.5 and above (firmware update via Flipsky ESC Tool supported)Voltage: 14V-85V (safe for 4S-20S)Continuous current: 50V/400A; 75V/350A; 85V/300A (Values depend on the mounting, ambient temperature and air/water circulation around the device.)Peak Current: 800ABEC: 5V@1APower/Motor Wires: Integrated M6 terminalsProgrammable Tool: Flipsky ESC TOOLPWM Frequency Control: YESMultiple Speed Gear Limit Control: YES (UART / ADC)Regenerative Capacity: YESCommunication Ports: USB, CAN, UART, PPM, ADC/PASInput Signals Support: PPM, ADC, PAS, UART(compatible with FLIPSKY remote such as VX1, VX1Pro, VX2, VX3, VX3Pro, VX4Pro )Startup Modes Support: IPDS (sensorless), HFPI (sensorless), HALL (sensored), ENCODER(ABI Encoder，AS5047 Absolute Type Encoder SPI Port), OPEN(Sensorless Open-Loop Startup)Traction Control: YESMultiple Speed Gear levels: Low, Medium, High, ReverseSwitch Support: Power on/off button switch or key switchSize:L190*W109.1*H55.8(with aluminum enclosure) Features: 1.Adopting ARM Cortex-M4 structure with the max 240MHz , improves PWM switching frequency and the motor RPM.2.Programmable via Flipsky ESC Tool to be compatible with multi-types of motor, different battery voltages and multiple control methods.3.Programmable via Flipsky remote controller VX4Pro(remote firmware version: VX4Pro_V1.1 and above)4.Supporting motor FOC with low working noise and smooth starting.5.Supporting Real-time data and fault alerts.6.Supporting adaptive variable PWM frequency control.7.Supporting sensor mode(HALL,ENCODER) and sensorless mode(IPDS, HFPI,OPEN).8.Supporting control types: Current, Duty Cycle, Speed Control, Position Control.9.Supporting multiple types of motor temperature sensors such as NTC-10k-25℃, NTC-10K-100℃, PT1000, PTC-1K-100℃, KTY, etc.10.Protection functions: low and high voltage protection, motor over-temperature protection, MOSFET over-temperature and over current protection, battery over discharge protection.11.Integrating power of 12V(3pcs) to provide power for external devices(headlight, brake light, horn, etc.) with two groups normally open and one controlled by brake signal. (Note: maximum output current:4A)12.Supporting brake signal to cut off ESC output. Wire Connection:

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