I. The basic lifespan of lithium batteries
The lifespan of lithium batteries is usually measured by the number of charge and discharge cycles. Most lithium batteries can complete 300 to 500 full charge and discharge cycles. The cycle here refers to the process from 100% discharge to 0% and then recharging. If you use 50% of the battery‘s capacity each day and then fully charge it, it is equivalent to completing one cycle every two days.
Regular lithium batteries: Capacity drops to 80% after 300-500 cycles.
High-quality lithium batteries: Can achieve more than 800 cycles.
Special-purpose lithium batteries: Some can reach 1200 cycles.
II. Key Factors Affecting Lifespan
Apart from the basic number of charge and discharge cycles, these factors significantly affect the actual lifespan of lithium batteries:
Temperature influence: High temperatures (>45°C) accelerate aging, while low temperatures (<0°C) temporarily reduce performance.
Charging habits: Maintaining 100% charge for a long time shortens the lifespan.
Discharge depth: Frequent deep discharges (below 20%) cause greater wear and tear than shallow discharges.
Charging speed: Fast charging exerts greater pressure on the battery than slow charging.
III. Practical Suggestions for Extending Lifespan
Want your lithium battery to last longer? Try these methods:
Keep the battery‘s charge level between 20% and 80% for the best results.
Avoid using and storing it in high-temperature environments.
Perform a complete charge and discharge calibration once a month.
Store it at 50% charge when not in use for a long time.
Choose a compatible charger and avoid using inferior charging equipment.
