Battery Management (BMS)

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battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack), such as by protecting the battery from operating outside its safe operating area, monitoring its state, calculating secondary data, reporting that data, controlling its environment, authenticating it and / or balancing it.

A BMS may monitor the state of the battery as represented by various items, such as:

  • Voltage: total voltage, voltages of individual cells, minimum and maximum cell voltage or voltage of periodic taps
  • Temperature: average temperature, coolant intake temperature, coolant output temperature, or temperatures of individual cells
  • State of charge (SOC) or depth of discharge (DOD), to indicate the charge level of the battery
  • State of health (SOH), a variously-defined measurement of the remaining capacity of the battery as % of the original capacity
  • State of power (SOP), the amount of power available for a defined time interval given the current power usage, temperature and other conditions
  • Coolant flow: for air or fluid cooled batteries
  • Current: current in or out of the battery
1.60
OEM, China, 0.001kg
2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module is a small PCB mounted Li-ion Lithium Battery charger protection module. This...
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1.90
OEM, HX-2S-01, China, 0.001kg
2S 5A 8.4V 18650 Lithium Battery Charger Board Protection Module have main IC using original “precision” imported components. With overcharge, over...
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3.40
OEM, HX-3S-01, China, 0.004kg
3S 12V 10A 18650 Lithium Battery Overcharge And Over-current Protection board (BMS) ensures the security of battery pack. This battery management system...
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2.90
OEM, China, 0.002kg
The 4 Series 14.8V 18650 Lithium Battery Equalization Board is suitable for the lithium battery pack with no equalization charge and the charging balance is...
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2.90
Step-Up, OEM, China, 0.005kg
This module is a small single cell lithium battery charging module which also includes a 1A step-up (boost) converter for powering a large range of...
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2.40
Sensor, OEM, XD-82B, China, 0.002kg
This module is ideally suited to monitoring the status of a 12V battery. Through clever use of a series of resistors and the LM339 comparator, a visual...
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