What is a common port battery management system (BMS)?

One of the key benefits of a common port battery management system (BMS) is its simplicity. When building a battery pack with a common port BMS, you only need to wire a single set of cables to the battery. In contrast, separate port BMSs require running separate charge and discharge lines, adding complexity to the wiring.

Can I wire a battery with a common port BMS?

When building a battery with a common port BMS, you have the option to wire just one set of cables to your battery.

What are the different types of battery management systems (BMS)?

The two main types of Battery Management Systems (BMS) are common port BMS and separate port BMS. A common port BMS utilizes a single port for both charging and discharging processes, employing a mirrored arrangement of MOSFETs to manage power flow through this one port, making it simpler and often supporting higher charging currents.

How many wires does a common port BMS need?

It requires 2 wires out from the BMS. The advantage of the common port BMS is that it has only 2 wires out, is easy to connect, and is much more commonly used while replacing the old BMS.

What happens if a lithium battery is used in pack?

When the lithium battery is used in PACK, it is more likely to over-charge and over-discharge, which is caused by the consistency difference of the cell. If the charging and discharging process is not properly controlled, it will be further increased, resulting in the phenomenon of over-charging and over-discharging of part of the cell.

What is the difference between a common port and a separate port BMS?

When building a battery pack with a common port BMS, you only need to wire a single set of cables to the battery. In contrast, separate port BMSs require running separate charge and discharge lines, adding complexity to the wiring. Common port BMSs often have a higher charge current capacity compared to separate port units.