Like all things, batteries have a finite lifespan. As batteries get older and efficiency decreases, they enter what researchers call “capacity fade”, which occurs when the amount of charge your battery could once hold begins to decrease with repeated use.

There are two common types of Lithium battery: LiFePO4 battery and ternary lithium battery. Compared with ternary battery, LiFePO4 batteries are characterized by high-safety, high-rate charge-discharge characteristics and long cycle life.