Lithium Battery Lifespan:

The lifespan is measured by the number of charge-discharge cycles. A complete charge and discharge cycle is considered one cycle. Under a specific charge and discharge cycle, the number of times a battery can be charged and discharged before its capacity drops to a specified value is called the battery's charge-discharge cycle life.

For example, under standard conditions (25°C/77°F, 0.5C discharge rate, and 90% depth of discharge), the Jackery Explorer 1000 Plus retains 70% of its initial capacity after 4000 complete charge-discharge cycles. Therefore, its battery cycle life is 4000 cycles. The cycle life is significantly affected by factors such as charge-discharge rate, depth of discharge, and temperature.

Estimated Usage Lifespan:

For example, if the portable power station is used once every 3 days (one charge-discharge cycle), it would consume approximately 120 cycles per year. The estimated lifespan based on 1000 cycles would be approximately 1000/120 = 8.3 years (this is a theoretical estimate; actual usage depends on frequency of use). Additionally, after 1000 cycles, the battery can still be used, but its runtime will be shorter.