Q: Q: Can I Change My Own Battery?

asked by on

I did a oil change changed the spark plugs had a mechanic that said had a battery for 30 so i said ok i buy it so he puts it in then the inside of the car starts flashing everywhere then the car starts to idle and hesitate to drive i told him put mines back which he did now i know i have to get a new battery because i dont have one on but when i do buy one and put it on is there something i need to be doing before i crank the ignition

My car has 136000 miles.
My car has an automatic transmission.

Changing your own battery need not be complicated. But you have to get it right the first time or you can do a lot of damage. You must be sure that the Negative battery post goes to the Ground Cable and the Positive Battery Post is connected to the B+ cable. Usually the cables are color coded red for positive and black for negative, but in older cars that have been worked on a few times, It’s always possible that someone has replaced a cable with the wrong color code. Hooking up the battery backwards, even for just a moment can do hundreds or even thousands of dollars in damage to your car’s electrical system. There are also some issues that may pop up because the power was interrupted while you made the change, The radio may need recoding or the power windows may need to be synchronized but these are minor issues that are easily corrected and I’ll bet it has already happened to you after reading the description of your problem. If you would like to have a professional replace your battery and save you from these issues you can contact Your Mechanic to have a technician come to your home or office and replace your battery for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Q: Can I Change My Own Battery?

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: Clutch cable snapped

If there is no longer any tension on your clutch pedal then yes, the cable probably snapped. I would typically start by making sure that the cable is still attached to the pedal and the transmission. It may have just...

Q: My car wouldn't start this morning. I tried to jump it but it just clicked one time and didn't crank.

The battery sounds like it has power since you shorted the jumpers together. This is not a good way to test a battery or the battery could explode. You may have a problem with the starter or the cables going...

Q: Car not starting after battery jumping

Based upon what you are describing, it sounds like you may have been missing a cable on your car. You mention having the positive and negative cables connected to the car that is being used to jump your car, but...

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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.