13S 14S 15S Battery Protection Slave Board LTC6812 for 18650 Li-ion Lithium Battery Pack | MKBMS 15S Slave Board

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Sale price$128.99 Regular price$129.99


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 cells level monitoring 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.



Pack configuration examples:

MKBMS monitoring 25S pack :

2 x LTC6812-15S: 13S +12S (Two slaves partially loaded)


MKBMS monitoring 27S pack :

2 x LTC6812-15S: 13S + 14S (Two slaves partially loaded)


MKBMS monitoring 29S pack :

2 x LTC6812-15S: 14S + 15S (Two slaves partially loaded)


*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 Functions:

  1. Current and voltage protection: protect the battery pack from overcharge and over discharge, 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 divided into three aspects: automobile, industry, consumption:

  1. Electric vehicles
  2. Electric patrol car
  3. Scenic sightseeing car
  4. Handling robots
  5. Automatic forklift
  6. Electric two-wheeler
  7. AGV forklift
  8. Sightseeing car
  9. Electric tricycle
  10. Electric mobility vehicles
  11. RV
  12. Solar street light
  13. Outdoor energy storage
  14. Home energy storage equipment
  15. 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



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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