How much is normal for battery health to decline in a year?

Within 10%. Due to the charging and discharging behavior in normal use, the battery health will decline. Under normal circumstances, it is normal for the battery health to decline 10% for one year. The normal charge and discharge of the battery will lead to the decline of battery health by about 65,438+00% in one year's use. If it drops too fast, you need to go to the maintenance network to repair the battery.