Why would a new car battery go dead?
Some of the most common reasons for a car battery to die repeatedly include loose or corroded battery connections, persistent electrical drains, charging problems, constantly demanding more power than the alternator can provide, and even extreme weather.
What can go wrong changing car battery?
Always turn off the car; before disconnecting the battery….Disconnecting A Car Battery, May Cause A Whole List Of Issues:
- Starting problems.
- Drivability issues.
- Loss of air conditioning.
- Power accessory functions (door windows, seats, sunroof)
- False warning lights.
- Damage to electronic modules.
Why does my car not start after I replace the battery?
Evaluating Your Car’s Key Systems for Possible Failure. There are many other possible problems that could lead to the fact that, after you’ve replaced the battery, the car won’t start. One or more of several key systems might not run properly, or there could be a serious malfunction with the electrical system.
What to do if your VW wont start after a battery change?
Leave the cables disconnected for fifteen minutes If this doesn’t yield results, then you can try this alternative method to get your key to reprogram itself: Ensure that the battery is being charged with a charger Leave the key in the ignition with the battery on and the engine off for an hour
Is it bad to disconnect a car battery while it is running?
Disconnecting your battery while your car is running is absolutely terrible advice and a good way to fry your electronics and cause thousands of dollars in damage to your car! A car batteries job isn’t only to provide current for starting the vehicle. It does much more than that.
What to do if you have electrical issues after replacing a battery?
If you’re experiencing electrical issues immediately after a battery replacement or disconnect, make sure the battery cables were re-attached and tightened down properly. Herculean strength isn’t necessary, but the cables should be snug and not move around or come off of the battery posts.