Technical FAQs 4

What is a battery management system (BMS)?

It monitors and controls vital functions that optimize performance and safety. A BMS offers more than simple protection circuit modules (PCMs). It provides complete management capabilities that help batteries last longer and prevent dangerous failures. A battery management system is an electronic system that takes care of rechargeable batteries.

How does a BMS protect a battery?

Depending on these conditions, a BMS can take action to protect the system by shutting down, implementing cell balancing, or feeding into the cooling control system. Battery chemistry is temperature-dependent, and operation outside its thermal range could lead to a reduction in battery life and performance over its life.

Why do lithium-ion batteries need BMS?

Safety drives the need for BMS in lithium-ion batteries. These batteries don’t handle conditions outside their safe range very well. They can catch fire or explode if overcharged, over-discharged, exposed to high currents, or used in extreme temperatures. This is called thermal runaway.

What temperature do lithium ion batteries work at?

Lithium-ion batteries work best between 15°C and 35°C. The BMS works hard to keep the pack in this range whatever the outside temperature. A battery management system’s architecture defines how its components connect and work together in the battery pack.

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Bms battery temperature

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