Car enthusiasts and DIYers diving into car coding need to be aware of proper battery maintenance. When coding your car, especially with the engine off, maintaining a stable voltage is crucial to prevent ECU corruption. Using a battery charger is a smart move, but connecting it directly to the battery terminals might bypass the battery sensor.
This sensor is important for your car’s charging system. Bypassing it can lead to the car thinking the battery is weaker than it is. This can negatively impact your alternator’s charging behavior during normal driving and potentially reduce your battery’s lifespan, especially with modern AGM batteries.
For optimal charging and to maintain your battery’s health while coding, it’s generally recommended to connect your charger to the under-hood charging posts. This ensures the battery sensor remains in the circuit, allowing for proper battery management and safeguarding your vehicle’s electrical system during coding processes.
