The highest and lowest voltages of three-string lithium battery pack

How do I choose a lithium-ion battery pack?

When selecting a lithium-ion battery pack, understanding its voltage characteristics is crucial for ensuring optimal performance and longevity. Three key voltage terms define a battery's operation: Nominal Voltage, Charged Voltage, and Cut-Off Voltage.

What is a lithium-ion battery voltage chart?

The lithium-ion battery voltage chart is a comprehensive guide to understanding the potential difference between the battery’s two poles. Key voltage parameters within this chart include rated voltage, open circuit voltage, working voltage, and termination voltage. Rated voltage

What should you know about lithium ion batteries?

The most important key parameter you should know in lithium-ion batteries is the nominal voltage. The standard operating voltage of the lithium-ion battery system is called the nominal voltage. For lithium-ion batteries, the nominal voltage is approximately 3.7-volt per cell which is the average voltage during the discharge cycle.

What is the difference between a lithium ion battery and a battery pack?

While a lithium-ion cell is a single battery unit, a battery pack combines multiple cells in series or parallel. The typical lifespan of lithium-ion batteries is around 300-1000 charge cycles. Voltage vs. Charging Relations The relation between voltage and the battery's charge is often overlooked, but it's important.

What are the key parameters of a lithium battery?

The key parameters you need to keep in mind, include rated voltage, working voltage, open circuit voltage, and termination voltage. Different lithium battery materials typically have different battery voltages caused by the differences in electron transfer and chemical reaction processes.

What is a standard lithium ion/lithium polymer (LiPo) battery discharge curve?

The following Figure 1 is a standard lithium-ion/lithium polymer (LiPo) battery discharge curve. Its nominal voltage is 3.6V or 3.7V, the fully charged voltage is 4.2V, and the discharge cut-off voltage is 3V. You see, from 4.0V to 3.6V, the voltage does not change much, but the power may drop from 80% to about 20%.