Is there ‘luck of the draw’ with batteries too?



The difference in battery capacity, often referred to as "luck of the draw" among general users, is actually a natural result of manufacturing tolerances. Even though batteries are produced with the same design capacity, the initial capacity of the battery pack installed in a vehicle can be slightly higher. This variation occurs due to differences in the manufacturer’s quality control and cell selection processes.

As shown in the figure below, the actual capacity of a battery pack is often higher than the specified design capacity. While the degree of variation may differ depending on the manufacturer’s capabilities, it is practically impossible to produce all battery packs with exactly the same capacity.





New Feature Update in the Dr.EV App

Dr.EV recognizes these differences and has added a new feature that allows users to check the actual battery capacity installed in their own vehicle.

The “Maximum Capacity” displayed in the app is an estimated value based on real-world measurements.Accordingly, the State of Health (SOH) is now displayed in two different ways:



This feature is only applicable to vehicles with relatively short driving distance and usage period.If there is no available measurement data, the app will display a value based on typical average vehicle data.

If the capacity shown in the app is significantly different from what you know about your vehicle, please feel free to contact us.We will thoroughly review the data and consider reflecting the correction.