The life of lithium batteries is usually 3-10 years, depending on the battery type, usage scenario and maintenance method:
1. Differences in life span in different application scenarios
Consumer electronics (mobile phones, laptops, etc.)
Average life span: 5-8 years, but it may be shortened to 2-3 years in actual use, mainly affected by charging habits and frequency.
Number of charge and discharge cycles: After 300-500 times, the capacity drops to 70%-80% of the initial capacity.
Electric vehicles
Ternary lithium batteries: about 3 years or 1000-1500 cycles.
Lithium iron phosphate batteries: theoretical life span of 7-8 years or 2000-2500 cycles.
Lithium titanate batteries: more than 8 years or 20,000 cycles.
Two-wheeled electric vehicles
Ordinary lithium batteries: 3-5 years. If lithium iron phosphate batteries are used, the life span can be extended to 5-7 years.
2. Key factors affecting lifespan
Charge and discharge depth: Frequent deep discharge (such as recharging after the battery is exhausted) will accelerate capacity decay. It is recommended to keep the battery at 20%-80%.
Temperature: High temperature (>45℃) or low temperature (<-20℃) will damage the battery. The optimal operating temperature is 25-27℃.
Usage habits: High current charging and discharging (such as fast charging), violent acceleration and other behaviors will shorten the lifespan.
3. Suggestions for extending lifespan
Avoid extreme charging and discharging: Try to charge and discharge shallowly, and avoid the battery level being lower than 20% or higher than 80%.
Control the temperature environment: Avoid long-term exposure to high or low temperature environments, such as avoiding charging in direct sunlight in summer.
Use original charging equipment: Non-standard chargers may cause overcharging or voltage instability.