Q: I bought a new battery and my car worked at first, but now it won't even start?

asked by on

I have a 2 year old, used, 2006 Dodge Stratus. It's been through country roads and back roads and hit a few bumps in the road. It lost its battery cover (cover on front left wheel) and we tried another battery. I just bought a new battery, the third one, and it worked for one day. It is cold and my car is weathered but there should be no problem with the battery. It has plenty of oil, and a quarter tank of gas, fluids are all filled up. No noise is made when trying to start.

My car has 127000 miles.
My car's transmission is unknown to me.

This may be a sign of a failing voltage regulator or failing alternator. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power as you have described. I would recommend having an expert from YourMechanic come to your location to diagnose and repair your charging system.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I bought a new battery and my car worked at first, but now it won't even start?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Can I use my jump starter to CHARGE a drained battery at home?

No. Here is a scenario. You have a good, but stone dead battery. You can attach a proper 10 amp charger to it and it won't even start to take a charge for about 30 minutes to an hour. Once...

Q: Battery light alternator - 2003 Ford Escape

Hello. If your car dies suddenly, accompanied by a "charge/battery" warning light, it would appear that you are having a problem with your charging system. Given the combination of symptoms you are describing, a mechanic has to first test...

Q: Q: My 2007 Grand Caravan hard detonation problem

As you know, a misfire can be caused by many different reasons such as bad spark plugs, spark plug wires, faulty fuel injectors, lack of voltage to fuel injectors, incorrect fuel pressure, an air intake leak and many other possibilities....

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...