The average lifespan ranges from 3 to 10 years, but this depends on critical factors like battery chemistry, usage habits, and maintenance. You might assume these devices last forever—after all, they're built for rugged use—but reality reveals a more nuanced truth. With the rising. With today's LiFePO₄ batteries, a quality portable power station typically lasts 8–10 years (often longer) and 3,000–5,000+ cycles before capacity falls to ~80%. Modern LiFePO₄ batteries, used in many newer power stations, can reach 3,000–6,000 cycles or more to. When people ask “How long does a portable power station last?”, they're usually mixing together four different questions: runtime per charge, battery lifespan (cycles/years), how long it holds charge in storage, and how long the hardware stays reliable.