SOX: The full name is State Of X, the state description of the battery, H is English Health,C is capacity, P is power, E is energy, a bit like the parameters of the engine, such as displacement, power, energy, running time, etc. The general idea is the same. SOC: (State of Charge) refers to the charge of a battery. The charge of a battery is like water in a bucket. The amount of available power in a battery at a given time is called the SOC of the battery at that time. The SOC is 0 at full discharge and 1 at full charge. Available capacity/Actual capacity. DOD: (Depth of Discharge) refers to the depth of discharge of a battery. When a battery is fully charged, its DOD is 0, and when it is fully discharged, its DOD is 1. Therefore, the DOD of a battery under a normal condition is between 0 and 1, and the relationship between DOD and SOC is DOD+SOC = 1. SOH: (State of health) Indicates the actual capacity of the battery or the initial rated capacity of the battery. The SOH decreases as the battery ages. Generally measured in terms of capacity and internal resistance