MKBMS is based on the modular BMS of LTC6811, and is connected to one or more slave boards and integrated boards of different sizes through the ISOSPI interface.
BMS Function ——
Overcharge protection: Yes
Over discharge protection: Yes
Temperature protection: Yes
Thermal management: Yes
Balance function: Yes
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.
LTC6211 12S Slave Features ——
1. Aluminum alloy PCB, better heat dissipation effect.
2. Compatible with MKBMS and ENNOID BMS.
3. from 5-12 cells level monitoring per board.
4. 1+4 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 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 4 temperature sensors are not in the package lists
but means an interface to connect 4 temp sensors at most.
Pack configuration examples:
MKBMS monitoring 23S pack :
2 x LTC6811-12S : 12S + 11S ( Optimal)
MKBMS monitoring 27S pack :
3 x LTC6811-12S: 9S + 9S + 9S (Three slaves partially loaded)
MKBMS monitoring 29S pack :
3 x LTC6811-12S: 10S + 10S + 9S (Three slaves partially loaded)
MKBMS monitoring 30S pack :
3 x LTC6811-12S: 10S + 10S + 10S (Three slaves partially loaded)
MKBMS monitoring 35S pack :
3 x LTC6811-12S: 12S+12S+11S (Good)
*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 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. Field programmable
6. Current limit calculation
7. Fully programmable CANBUS interface, programmable structure of all CAN messages
8. Drift state of charge
9. Reliability, speed and accuracy
10. Integration with other devices
11. Multiple BMS units connected in series
12. Current sensor support
13. Isolation from fault detection
14. Automotive grade design, automotive grade locking connector
15. 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. Robot and etc.
Shipping List:
LTC6811-12S-AL V1.2 Slave Board Package——
1X PCBA board LTC6811-12W-AL V1.2 slave board
2X GH1.25 double head 2P same direction line
1X HY2.0 single head 5P line
1X HY2.0 single head 13P line
4X Nylon column
4X Nylon nut
LV Master Board + 12S 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 Switch
1X PCBA board LTC6811-12W-AL V1.2 slave board
2X GH1.25 double head 2P same direction line
1X HY2.0 single head 5P line
1X HY2.0 single head 13P line
4X Nylon column
4X Nylon nut
