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

This experiment is based on a user scenario involving a vehicle that is already out of warranty and has shown signs of the BMS a079 symptom. The approach focuses on keeping the vehicle operating as stably as possible for as long as possible, while accepting a certain level of inconvenience. It has now been eight weeks since the BMS a079 symptom was first detected. So far, the BMS a079 error code has not occurred even once. Around the third week, the battery condition showed s

After the recent UI update, Dr.EV has been showing battery degradation factors using numerical indicators. Some users mentioned that the numbers were difficult to interpret, so we added a new feature that explains these factors in clear, easy-to-read sentences. As always, we will continue analyzing the correlation between degradation and its influencing factors for each vehicle and refine the system over time. Additionally, based on user requests, we have added a detailed sta

We conducted this analysis because one user suggested that it would be helpful to examine his data. He already knew that his charging and driving style was quite tough and wanted to confirm it through actual data. On the left are their SOH trends. One vehicle has decreased to about 78%, while the other remains around 86%. Even with the same model and year, the SOH decline can vary noticeably from user to user. On the right are the voltage-deviation results from a single charg