Jumped your dead car battery and thinking you can just chill in park? Not so fast! Modern alternators are busy powering all your car’s gadgets, so idling barely charges your battery. You actually need to hit the road—highway speeds for at least 30 minutes (longer is better) to give your battery a fighting chance. Full charge? That could take hours. Or, skip the drive and use a battery charger overnight. Wild, right? #CarHacks #BatteryTips #LifeProTip #Cars