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sig energy

The system has a high-precision voltage detector, current detection, temperature detection, SOC estimation algorithm, loss balance, CAN BUS communication, RS485 communication, relay control, switch signal output, active signal input, etc.



1Voltage Detection Maximum strings support from the voltage detector: 16 * n (n ≤ 25, total pressure ≤ 1000V)
Voltage detection range: 0 to 5 V (other voltages can be customized)
Voltage detection accuracy of ± 5 mV
2Temperature DetectionTemperature detection maximum support 3 * n (n ≤ 25)
Temperature sensing range of -40 °C to 125 °C
Temperature measurement accuracy ± 2 ° C (-40 °C ~ 85 °C)
3Current DetectionCurrent ranges ± 1000A (Current sensor optional)
Current measurement accuracy of ± 1%
4BCU Module Relay Control3-way active output interface, 1-way passive output interface
Rated load current ≤ 1.2A, peak current ≤ 4A
5BMU Module Relay Control2-way relay control, rated load current ≤ 1.2A peak current ≤ 4A
6Active EquilibriumCharge balance, charge low-voltage batteries; open all balances under certain conditions, and different balances are independent of each other, balanced current 2A±0.1A (room temperature)
7Equilibrium Current detectionReal-time Equilibrium current detection
8Balanced Failure protectionEffective protection of the battery safety
9485 Communications3-way 485 communication interface
10BCU Module CAN Communications3-way CAN communication interface
11BMU Module CAN Communications1-way CAN communication interface
12Switching Signal Output4-way switch signal output, the maximum load current of 500mA
13Active Signal Input2-way active signal input, 9 ~ 36V
14Data DisplayLCD screen can be connected through the 485 BUS
Can connect the host computer via 485 or CAN
15SOC Estimation Error< 5%
16Failure AlarmBuzzer sound alarm
17Data StorageSupport 2 ~ 8G high-capacity SD data storage card
18DTU InterfaceReserved DTU Interface using 485 protocol
19System Power ConsumptionBCU: 3W, BMU: 1W (when equilibrium, do not open)
20Operation voltage Range12V system: DC9 ~ 18V (excluding LCD screen)
24V system: DC18 ~ 32V (excluding LCD screen)
21Operation Temperature range-30 ºC ~ 75 ºC
22Storage Temperature Range -40 ºC ~ 85 ºC


  • Efficient balance, one-way lossy balance maximum current can reach 1A, and can open 2-way balance at the same time, a balance fail-safe function is designed to protect the battery;
  • The system has high accuracy in voltage, current, temperature data collection;
  • The system adopts a double isolation design; each functional port is with protection, with high-security;
  • The system goes through EMC, high and low temperature, vibration, salt spray and other environmental testing, with strong reliability;
  • Real-time display of system information via the LCD screen or PC;
  • Support 2 ~ 8G high-capacity data storage;
  • Reserved for the remote management interface, you can upload system date to server through a remote management module;
  • The system has multiple-way strong electrical control interface, isolate the control of weak and strong electric system, and improve effective immunity.