What is the lifespan of a lithium-ion battery?

Lithium-ion (Li-ion) batteries can store more energy than NiCd and NiMH batteries and offer a very high energy density — up to approximately 140 Wh/kg.

The actual lifespan of a Li-ion battery depends on factors such as:

• The application
• Number of charge and discharge cycles
• Charging behavior
• Operating temperature

To maximize battery lifespan:

• Avoid fully charging the battery continuously
• Preferably keep the charge level between 20% and 80%
• Prevent deep discharge
• Store the battery at around 40% charge when not used for long periods
• Store the battery in a cool environment below 25 °C

With proper use and storage, lithium-ion batteries can achieve a long operational lifespan and stable performance.