Free, open-source Tesla battery health and used-car inspection tool. Reads the diagnostic CAN bus read-only through an OBD-II adapter (ELM327, OBDLink, CANable) and shows state of health, degradation, capacity, every cell group, a weak-cell charging test, alerts and a buyer checklist. Model 3, Y, S, X. Windows app + .NET library.

battery battery-degradation battery-health bms can-bus car-diagnostics csharp dotnet electric-vehicle elm327 ev obd2 state-of-health tesla tesla-model-3 tesla-model-s tesla-model-x tesla-model-y used-cars wpf
6 Open Issues Need Help Last updated: Oct 6, 2026

Open Issues Need Help

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enhancement help wanted

Free, open-source Tesla battery health and used-car inspection tool. Reads the diagnostic CAN bus read-only through an OBD-II adapter (ELM327, OBDLink, CANable) and shows state of health, degradation, capacity, every cell group, a weak-cell charging test, alerts and a buyer checklist. Model 3, Y, S, X. Windows app + .NET library.

C#
#battery#battery-degradation#battery-health#bms#can-bus#car-diagnostics#csharp#dotnet#electric-vehicle#elm327#ev#obd2#state-of-health#tesla#tesla-model-3#tesla-model-s#tesla-model-x#tesla-model-y#used-cars#wpf
help wanted car report

Free, open-source Tesla battery health and used-car inspection tool. Reads the diagnostic CAN bus read-only through an OBD-II adapter (ELM327, OBDLink, CANable) and shows state of health, degradation, capacity, every cell group, a weak-cell charging test, alerts and a buyer checklist. Model 3, Y, S, X. Windows app + .NET library.

C#
#battery#battery-degradation#battery-health#bms#can-bus#car-diagnostics#csharp#dotnet#electric-vehicle#elm327#ev#obd2#state-of-health#tesla#tesla-model-3#tesla-model-s#tesla-model-x#tesla-model-y#used-cars#wpf

Free, open-source Tesla battery health and used-car inspection tool. Reads the diagnostic CAN bus read-only through an OBD-II adapter (ELM327, OBDLink, CANable) and shows state of health, degradation, capacity, every cell group, a weak-cell charging test, alerts and a buyer checklist. Model 3, Y, S, X. Windows app + .NET library.

C#
#battery#battery-degradation#battery-health#bms#can-bus#car-diagnostics#csharp#dotnet#electric-vehicle#elm327#ev#obd2#state-of-health#tesla#tesla-model-3#tesla-model-s#tesla-model-x#tesla-model-y#used-cars#wpf
help wanted car report

Free, open-source Tesla battery health and used-car inspection tool. Reads the diagnostic CAN bus read-only through an OBD-II adapter (ELM327, OBDLink, CANable) and shows state of health, degradation, capacity, every cell group, a weak-cell charging test, alerts and a buyer checklist. Model 3, Y, S, X. Windows app + .NET library.

C#
#battery#battery-degradation#battery-health#bms#can-bus#car-diagnostics#csharp#dotnet#electric-vehicle#elm327#ev#obd2#state-of-health#tesla#tesla-model-3#tesla-model-s#tesla-model-x#tesla-model-y#used-cars#wpf
enhancement good first issue

Free, open-source Tesla battery health and used-car inspection tool. Reads the diagnostic CAN bus read-only through an OBD-II adapter (ELM327, OBDLink, CANable) and shows state of health, degradation, capacity, every cell group, a weak-cell charging test, alerts and a buyer checklist. Model 3, Y, S, X. Windows app + .NET library.

C#
#battery#battery-degradation#battery-health#bms#can-bus#car-diagnostics#csharp#dotnet#electric-vehicle#elm327#ev#obd2#state-of-health#tesla#tesla-model-3#tesla-model-s#tesla-model-x#tesla-model-y#used-cars#wpf
help wanted car report

Free, open-source Tesla battery health and used-car inspection tool. Reads the diagnostic CAN bus read-only through an OBD-II adapter (ELM327, OBDLink, CANable) and shows state of health, degradation, capacity, every cell group, a weak-cell charging test, alerts and a buyer checklist. Model 3, Y, S, X. Windows app + .NET library.

C#
#battery#battery-degradation#battery-health#bms#can-bus#car-diagnostics#csharp#dotnet#electric-vehicle#elm327#ev#obd2#state-of-health#tesla#tesla-model-3#tesla-model-s#tesla-model-x#tesla-model-y#used-cars#wpf