Every EV owner wonders, "How much battery do I have left?" Here is how Dr.EV answers.

Below are two Tesla charging examples. Both show cell voltage behavior during charging. The difference becomes clear near the upper SOC range. One case shows balancing recovery.The other shows a condition where balancing can no longer recover the imbalance. Case 1: Balancing Recovers In the first graph, look at the circled area near high SOC. As charging progresses, the thickness of the cell voltage band becomes thinner. The spread between the highest and lowest cells gradual

One of our Dr.EV users recently asked us a common question: “Why is CB-R bad? And what can I actually do about it?” CB-R is a Dr.EV indicator designed to detect cell imbalance. Why cell imbalance is not good for your Tesla. When cells are imbalanced, the usable energy of the entire battery pack is limited by the weakest cell. In this case, we guide slow charging help passive cell balancing working well. Here is real graph. As SOC goes up, cell voltage differences usually get

People usually think about it like this. If a battery is rated for 1,000 cycles, and one full charge lets you drive 500 km, then the battery should last about 500,000 km. But there is one important thing missing from this calculation: regenerative braking. In an electric vehicle, when you slow down or brake, energy flows back into the battery and is then used again for driving. This process still counts as battery usage. For example, if during a drive the energy reused throug