A charge cycle refers to the process of fully charging a battery and then discharging it, either partially or completely. For example, if you use 50% of a battery’s capacity in one day and then recharge it, repeating this process on the second day completes one full cycle. The number of charge cycles a battery can endure before its capacity significantly degrades is an important factor in the longevity of EV batteries. Most modern EV batteries are designed to last for thousands of charge cycles, translating to many years of driving.