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 4S-30S 20A Only Charge Battery Protect Board device is designed to reduce the risk of charging. Designed to be ultra-compact and simple to use without any configuration required. Features high charging current, balancing activity LED lights, overcharge, and over temperature protection .Extensive Used in electric bicycles, electric scooters, Onewheels and other fields. MKBMS 4S-30S 20A Only Charge Board does not support discharge protection, please do not discharge through this protection board. adapter board: https://shorturl.at/bhjTY Specs: Type: Charge only Cell Chemistry: Li-ion (3.7V nominal) Balance method: Passive balance Series Count: 4S-30S Charge Current: 20A Overcharge Voltage: 4.25V Overcharge Reset: 4.19V Balance:20-30mA@4.2V（Please balance the battery first before charging） Overtemperature: 60°C Overtemperature Reset: 40°C Size: 130*30*11mm Net weight: 30g Features: Compact charge only design Cell balance indicator LED Compatible with 4s-30s battery Designed to be ultra-compact and simple to use without any configuration required Anodized aluminum heatsink case, stable performance Functions: Balance function Overcharge protection Overtemperature protection Cell balance indicator LED Common Uses: ▪ One-wheeled electric skateboards ▪ Electric Skateboards ▪ Electric Scooters ▪ Electric Bikes ▪ EUCs Package Included: 1* MKBMS 4S-30S 20A Only Charge Board 1* GH2.0 single head 15P line 1* GH2.0 single head 16P line 1* HY2.0 single head 2P cable with thermal protection switch 1* Charging cable with XT30 or XT60 connectors Operation Notes: Please ensure the correctness of the wiring sequence, from B0-B15, B16-B30, the voltage increases from low to high in sequence. This BMS is compatible with battery packs up to 30s, which is over 5V DC when fully charged. Electric shocks from high voltage may cause serious injury. Please pay attention to safety when using. This device is designed to reduce the risk of charging and will not protect against overcurrent discharge, undervoltage, internal pack shorts, pack overtemperature. Video:

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Firmware & software repositories are available click here： MAXKGO MAXKGO BMS User Manual:MAXKGO Maxkgo-BMS Privacy Policy (1)Maxkgo-BMS User Protocol (1) Remark:Only Support 6S-28S 12A Smart Only Charge BMS and 6S-24S 150A Smart BMS Specs: ●Type:Smart Charge only ●Cell Chemistry: Li-ion/LiFePO4 ●Number of Battery Strings: 6S-28S ●Charge Current: 12A ●Single cell voltage Sdetection range: 2v-5v,error value:±2mV ●Balance: 28mA@4.2V,Passive balance ●connector:XT30/XT60 ●Short Circuit Protection:Support. ●Bluetooth Function:with Bluetooth ,Support for Android  ●Temperature detection:-30～125℃. ●Voltage support range: 15V-118V ●Abs. Max battery voltage: 120V ●Shutdown Consumption: <80uA ●Quantity of Temperature Detection: 4 Pcs(NTC) ●SoC estimation accuracy:Error:8%(operating conditions). ●Operating power consumption:<40mA(UART/CAN). ●Standby power consumption:<100uA. ●Charge protection Temp: 0°C~100°C ●Charge Temp Reset: 0°C~100°C ●Recommended Working Temp:-20°C~+75°C ●Size: 112.17*33.7*12.8mm Notice:The Each S voltage can only be set to a maximum of 4.2V for 28S battery pack Package Included: 1* MKBMS 6S-28S 12A Smart Only Charge Board(With aluminum shell) 1* Bluetooth module 1* UART module 1* 1.3 inch OLED display LCD screen module 1* 12MM 3-6V key switch 1* GH1.5 single head 5P line 1* GH1.25-5P to Dupont line 1* PH2.0 single head 15P line 1* PH2.0 single head 14P line 1* PH2.0 single head 8P line Wiring Diagram Operation Notes: Please ensure the correctness of the wiring sequence, from B0-B15, B16-B28, the voltage increases from low to high in sequence. This BMS is compatible with battery packs up to 28s, which is over 118V when fully charged. Electric shocks from high voltage may cause serious injury.Please pay attention to safety when using. This device can only be used for charging to reduce the risk of overcharging, but cannot prevent Discharge over-current, short circuit, and over-discharge.

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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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Firmware & software repositories are available click here： MAXKGO Tutorial on MAXKGO BMS settings with VESC Spec: Cell voltage operating range:2V-5V Recommended series cell:18S-24S Charge Voltage:48V-104V Charge Current：≤10A Abs. Max battery voltage: 120V Minimum operating voltage: 28V Continuous charging current: 10A Over charge detect and release voltage: 2V-5V Over charge protection delay: ≥4ms Discharge current: ≤70A Discharge voltage:48V-104V Over discharge detect and release voltage: 0-5V Over current detect delay:≥4ms Discharge over current protection release condition: off load Short Circuit detect voltage:short circuit of external load Short Circuit detect delay: 320us Short Circuit protection release: off load Battery pack capacity and internal resistance detection: Yes Balance current: 50mA @4.2V Temp Protect: -20℃—+120℃ Working Temp Range:-20℃—+80℃ Storage Temp Range: -20℃—+100℃ Working current: ≤40mA Sleeping current: ≤100uA Size: 109 x 40mm Net weight: 126.7g Packing size: 140 x110 x 50 mm Package weight: 370.3g Including outer carton size: 170*120*100mm Weight with outer carton: 420g Feature: Compact layout and mini Using aluminum alloy material shell, better heat dissipation. Automotive grade design, automotive grade locking connector. Configuring and firmware upgrades over USB through the MAXKGO-BMS-TOOL and ENNOID-BMS-TOOL. Automotive grade monitoring & balancing IC with separate power supply for increased reliability Voltages measurements for load, charger & battery pack Bi-directional current monitoring SOC based on coulomb counting Humidity sensor & board temperature monitoring Charger detection circuit Integrated precharge circuit Power button, USB-C, UART, I2C & isolated CAN bus interface On board High-Efficiency 3.3V regulator powered from the main battery pack High current capacity automotive grade screw connectors for main power connections Buzzer & status LED Support overcharge/discharge/over current /temperature protection,and have thermal management/balance function(active balance and passive balance). Support almost all lithium batteries such as lithium ion battery, lithium polymer battery, lithium phosphate battery, etc. Video: If you need wiring diagram of different number of series, pls contact us. 

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Specification MAXKGO DCDC 450V to 12V Step-down Power Supply Module is a high-voltage DC-DC converter from 450V to 12V and can provide a DC current of 4.2A. The input voltage can support the range of 150V-450V.The out voltage is equipped with a fine adjustment that be adjusted with a range of 11.8V-12.2V DC. The converter has good stability and reliability and is widely used in various occasions that require high-voltage conversion to low-voltage. Feature Output characteristics Input voltage：100-450V DC Output voltage：12V/4.2A Output voltage accuracy：±1% Ioading effect：10%~100%Ionom  △Voutnom≤±0.2% Source effect ：Vinmin~Vinmax △Voutnom≤±0.2% Ripple：100mV Conversion efficiency：80% （Typical value） Temperature Coefficient：≤±0.02%/℃（Maximum） Security features Isolation voltage：Vin~Vout   Vin~FG   Vout~FG   All are 500vdc/min Insulation resistance：≥100MΩ Protective function：Short circuit protection（self-recovery） Environmental characteristics Working temperature：-25 ~ +85℃ Storage temperature：-40 ~ +105℃ Relative humidity：10RH ~ 90RH Implementation standards Electromagnetic Compatibility:IEC100、EN61000 Safety：UL1950、IEC950  Features High power density, small size Multiple protection function Enhanced electromagnetic compatibility design, can work in strong electromagnetic environment Integrated potting process, anti-corrosion, moisture-proof and shock-proof Good thermal conductivity and reliability Application MAXKGO Master-slave BMS Energy storage Photovoltaic New energy vehicles Widely used in various occasions requiring DCDC conversion Shipping list 1X    MAXKGO DC-DC 450V to 12V Converter 1X    GH2.0 single head 2P cable（With buckle） 1X   power cable Operational matters Please ensure the correctness of the wiring sequence when wiring. The input voltage will reach a maximum of 450V. There is a risk of electric shock, so please pay attention to protection.

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MKBMS is based on the modular BMS of LTC6812, and is connected to one or more slave boards and integrated boards of different sizes through the ISOSPI interface.   MKBMS Function —— Overcharge protection: Yes Over discharge protection: Yes Temperature protection: Yes Thermal management: Yes Balance function: Yes Balance method: passive balance  Battery pack capacity detection: Yes Battery internal resistance detection: Yes Support battery: support almost all lithium batteries such as lithium ion battery, lithium polymer battery, lithium phosphate battery, etc.   LTC6212 15S Slave Board Features —— 1. Aluminum alloy PCB, better heat dissipation effect. 2. Compatible with MKBMS and ENNOID BMS. 3. From 5-15 series-connected battery cells per board. 4. 1+8 temperature sensors per slave. 5. Self-powered by the monitored cells. 6.Ultra-low power consumption, sleep mode=6uA. 7. It can be connected to multiple slave boards to form an integrated board through the ISOSPI interface 8. Daisychain Master / Slave ISOSPI communication 9. 1.2mV accuracy, -40 to 120C operation 10. 33 ohm balance resistors (0.125A capacity) on all channels 11. Scalable & isolated 1000VDC+ 12. Molex SL horizontal connectors for balance & temperature. (Comes with male, female + crimps) *The first temperature channel is used by slave board itself. The following 8 temperature sensors are not in the package lists but means an interface to connect 8 temp sensors at most.   MKBMS Functions: Current and voltage protection: protect the battery pack from overcharge and over discharge, thereby extending the cycle life. Battery health monitoring: monitor the internal resistance of a single battery and the monitoring capacity of the battery pack. Thermal management: Overheating and under-temperature protection. Support batteries: Li-Ion, Li-Polymer, Li-Phosphate Intelligent battery balance: passive balance  Field programmable Current limit calculation Fully programmable CANBUS interface, programmable structure of all CAN messages Drift state of charge Reliability, speed and accuracy Integration with other devices Multiple BMS units connected in series Current sensor support Isolation from fault detection Automotive grade design, automotive grade locking connector Software for data logging and programming   MKBMS can be divided into three aspects: automobile, industry, consumption: Electric vehicles Electric patrol car Scenic sightseeing car Handling robots Automatic forklift Electric two-wheeler AGV forklift Sightseeing car Electric tricycle Electric mobility vehicles RV Solar street light Outdoor energy storage Home energy storage equipment Robotand etc.   Shipping List:  LTC6812-15S  Slave Board 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   Specification Size：100 x 60mm Net Weight：31.8g Package Size：140 x110 x 50 mm Package Weight：120g Outer Package Size：160*120*75mm Outer Package Weight ：240g

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Spec:Firmware supporting update via Flipsky ESC ToolVoltage: 14-84V(safe for 4-20S)Continuous current: 50V/60A; 75V/50A; 84V/40A (Values depend on the mounting, ambient temperature and air/water circulation around the device!); Peak Current: 250ACommunication Ports: USB, CAN, UARTInput Signal Support: PPM, UART(compatible with FLIPSKY remote VX4 only), ADCBEC: 5V@1AMultiple Speed Gear levels: Low, Medium, High, ReverseMotor/power wire size: 12 AWGProgrammable: YesRegenerative Capacity: YesSize: L110.5*W55*H30mm(Including Alu. Case)Power Switch Button: Red Features:1.Adopting CPU AT32F403ARCT7 with the structure of ARM Cortex-M4 allows CPU clock speed2.240MHz and the max PWM switching frequency 45KHz, which improves the motor RPM.3.Programmable via Flipsky ESC Tool to be compatible with multi-types of motor, different batteryvoltages and many control ways.4.Programmable via Flipsky VX4 remote(Firmware Version:VX4_V1.2)5.Supporting FOC with low working noise and smooth starting.6.Supporting Real-time data and fault alerts.7.Supporting adaptive variable PWM frequency control.8.Supporting sensor mode(HALL) and sensorless mode(IPDS, HFPI).9.Supporting control types: Current, Duty Cycle10.Protection functions: low and high voltage protection, over-current protection, temperature abnormally protection, mosfets over-temperature and over current protection, battery over discharge protecting, motor over-temperature protection. Application Fields:Electric skateboard / Ebike / E-Scooter / Electric Motorc ycle / Robotics / FPV / RC Toys /Boat / Kayak etc Note: USB cable will be shipped randomly in black or white color.

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Specifications: KV Value: 1100 Axis Extension size: 16 ± 0.3mm Silicon Steel SheetOuter Diameter: 28mm Motor Phase Number: 3Phase Lead Specification: 18AWG special soft silicone wire/200mm Motor Outer Diameter D: 34 ± 0.1mm Rated Voltage U0: 24.0V No-load Speed n0: 25000rpm ± 10% No-load Current I0: 2.2A ± 20% Magnet Grade: N52H Screw Hole: 4-M3 * 3.5 Product Photo:

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Specifications: Model: 3625 KV Value: 1800 KV Axis Extension Size: 16±0.3mm Outer Diameter Of Silicon Steel Sheet: 30mm Axial Clearance: <0.1 Silicon Steel Sheet Height: 12mm Installation Of Threaded Hole Positioning Dimensions: 25±0.1mm Magnetic Grade: N52H Screw Hole: 8-M3*3.5 Phases: 3 Phase Lead Specifications: 16AWG special soft silicone wire/200mm Slot Poles Number: 12N/14P Motor Weight (with leads): 92g Ctator Coil Connection Type: △ Rated Voltage : 16.8V Insulation Resistance: ≥0.5MΩ Interphase Resistance R: 20.3mΩ±10% Motor steering: C.W/C.C.W No Load Speed : 29300rpm±10% Voltage Range: 2～4S No Load Current: 4.5A±20% Motor Outer Diameter D: 36±0.1mm Max. Current: 69A Model Body Height: 25±0.3mm Max. Power: 1150W Test Voltage: 16.8V Resistance: 20.3Ω Product Photo:

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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 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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