Do lithium ion batteries need a BMS system?

Lithium-ion batteries, especially custom lithium ion battery packs, need a BMS (Battery Management System) to ensure the battery is reliable and safe. The battery management system is the brain of the lithium battery and reports the status and health of the battery. Let’s get a better understanding from this article. What is a BMS System?

What is a battery management system (BMS)?

A BMS has the protection of overcharge, discharge, short circuit, and temperature protection. The technology of hardware BMS is more stable than smart battery management systems. The software engineer codes the hardware BMS which manages or monitors the battery pack status. The BMS is the brain of the lithium-ion battery.

How much does a battery management system cost?

Active BMS also enables low-voltage charging restart once cells recover to safe zones. With enhanced capabilities over passive BMS, they suit medium-large battery capacities. Average active BMS price range: $500-$2,000. Hybrid BMS – As the name implies, hybrid BMS combines elements of both passive and active systems.

Is a BMS a charger?

Both are capable of protecting and balancing the batteries. A BMS is not a charger. You need a proper charging circuit that carries out two step CC/CV charging and shuts off when the battery is full, otherwise you may overcharge them and that can be extremely catastrophic. @Dan You need, as said already, a charger.

Why is hardware BMS better than smart battery management system?

The technology of hardware BMS is more stable than smart battery management systems. The software engineer codes the hardware BMS which manages or monitors the battery pack status. The BMS is the brain of the lithium-ion battery. We not only are good at designing and developing the BMS but also inspecting the risks.

What factors affect BMS pricing?

Scale of System – The size of the battery bank and the capacity that the BMS must handle also impact costs. Prices increase with higher voltage, amp capacities, and parallel/series configurations. Battery Voltage – BMS pricing often correlates to common battery voltages used.