What Would Cause A Car Battery To Drain Overnight. Whatever was causing the battery drain has stopped. To test whether an alternator is draining the battery with the cars engine switched off disconnect the cars electrical system leaving the battery only.
To test whether an alternator is draining the battery with the cars engine switched off disconnect the cars electrical system leaving the battery only. Can a starter drain a battery overnight. You can only drain a gas cars battery when the engine isnt running or the alternator is bad.
A loose or corroded battery connection increases the load or resistance in the line making the battery drained too fast.
A typical car battery will drain in 2-3 weeks and be unable to start your car due to the parasitic draw from the cars electronics. Then headlights phone charging radio and anything else that draws electricity will eventually drain the battery. Even if these components were installed safely and properly prior the components themselves can malfunction and cause the battery to drain. If playback doesnt begin shortly try restarting your device.
